since you got oblivion let me point you to:

texture overhaul (incredible graphics): http://devnull.sweetdanger.net/obliviontextureoverhaul.html

fcom: convergance (all good mods combined in one megamod hard to install though): http://devnull.sweetdanger.net/convergence.html

All good choices.

Haven't tryied Risen...

Not a big fan of Sims.

Fallout 3 is ok but then again it sold well.

For Eve, expansions are free and its just $14.95 a month... If you can get friends to join ya its way better (Some of my friends that I hang out with play eve which helps). I recommend joining Militia ie Caldari! You could also join a corperation too but I think Militia is the best way to get ya goin. Always lots of people to talk to. You can get people to teach ya and also best way to get into fights right off the bat. Also Caldari is best militia at the moment. Expansion coming in Winter! Though the more skills you have the better, which makes eve easier to play and opens doors for ya. But yes it does take time. It a really big place and the possibilities are endless. I can understand people not liking eve if they had no friends in eve playing with them(yes it can get lonely). Fly what you can lose. and only fly stuff that your efficient at.

Only 2 other games that I can think of that your missing is Deus Ex 1 and Homeworld 1. Deus Ex you can get on Steam easily but you can look online for a copy. Homeworld you would have to hunt it down.

oblivion + mods is win, seriosuly there are wway to many mods to talk about the graphics mods are nice, the goblin mods fix what is broken in normal game and then there are plenty of full mods that re-do the classes leveling and many other things

CoH is one of my favorite RTSs to date

Orange box hasbeen covered but its not just HL2 its also Portal (check out portal prelude "mod" for when your done if you like that one its a whole 2nd game thats more difficult) TF2 and CSS

 As a sidenote/suggestion check out Overlord1/2 good comical game that many people enjoy demos are on steam or if your in the space sim/ship combat check out X3: Terran Conflict (i warn you a steep learning curve on the game but once you get into it its almost as bad as an mmorpg in the time you'll put into it)

Definately worth $30 if you haven't played Half Life 2 yet. I don't like the episode expansions. They're well done, but so short that I would feel very ripped off if I paid full price for them. Portal is very fun too, but very short if you're a decent problem solver. Team Fortress 2 isn't my favorite game. I don't enjoy playing online with immature people or super elite pros who have mastered the art of video games. But that's all personal preference.

A great throwback RPG. I haven't fully explored it yet, but seems to be a fun game if you enjoy the style of game. I don't see many of these types released that are well done, and this one is a nice addition.

If you played and loved Morrowind, you're not going to like Oblivion very much. The more you loved it actually, the less you'll like Oblivion. It's a console-ified, dumbed down and overly simplified game that holds the hand of the player and walks them through the game giving out free candy, and seems to find ways to frustrate you without challenging you in the least. If it's for the 360, it's only worth getting on sale and wasting some time on you've never played an Elder Scrolls Game, since you won't realize what's missing. For the PC, there are enough mods to make the game worthwhile. The mods can't fix everything (ai problems, bland npc's, some of the hand holding), but a heavily modded Oblivion is a much better game and is worth playing for many hours.

This suffers from a lot of the same problems as Oblivion, but with a few less critical flaws. It does still suffer from a few of the same main complaints though; not enough variety in the NPC's, over used voice actors, only a half-interesting main quest, etc. I found it fun and more fun without mods than I expected, but the modding changed it from a decent game that would be soon shelved into one that I'll play for awhile.

Most of this game is fought in the forums. It's very beautiful but zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz. Sorry I nodded off there for a bit. It can be very boring. It's got a lot of different ideas, but again, I don't like playing with people who are obsessed, or the uber elite that must conquer all things in the virtual world. I'm a mix somewhere inbetween casual gamer and hardcore, and Eve isn't my style. That doesn't mean it's not yours though.

I liked this game at first, but after completing the campaigns and playing a bit of multiplayer I got bored with it. It's fun and worth a play through, but doesn't have much to offer imo once you've worked through the strategies and tactics.

A good game to waste time on that I like to pop in and play every now and then. Racing games seem to follow their own models. If you liked previous Burnouts then you'll like this one. If you haven't, this one isn't going to do anything to change your mind.

My girlfriend likes this game, but I haven't spent much time on it so I can't offer any opinion. It's not really my type of game.

Orange Box: Good value package. The gem in this is Portal. Hillarious mind boggling game.

Oblivion:  A bland game IMHO. Hated the way enemies scaled. Plus after a while, most locations tended to make me feel like i was just going through the same repetitive monster smashing...just that the monsters looked different. If you want a good action-RPG, try Enhanced Edition Witcher.

Fallout 3: Oblivion with guns. If you like Oblivion you will like this.

EVE Online: never played this. I tried playing the demo but i fell asleep so i gave it a pass.

Company of Heroes: Great game. But micromanaging he troops can get a bit crazy at times. But still fun.

Sims 3: Hmmmm....it's the Sims.It can be entertaining if your are in to these kinds of stuff...or it could be downright brain curdling boring....

Personally, I'm waiting for the release of Tropico 3 coming end of this month. I played the demo and loved it. Being an evil dicatator of a banana republic has never been such fun (except for the original Tropico)

Can someone give me links to the best oblivion mods so I can get them if I get the game?

I got all my Morrowind mods from this site hope you find what ya want. (thats the oblivion section, morrowinds somewhere else on the site)

That would be a list of 500 links, if we tried to keep it short....

Oblivion isn't like most games, where there are one or two mods that you need and the rest don't really matter. The vanilla game is very bland, repetitive, and flawed. It takes a bit to get it to the levels it should have been at release.

Go to the official Bethesda website and snoop around. There are several mod lists for you to sift through. www.TESNexus.com is the other big mod website, and was the most popular one when I was still very active in the community. You need WyreBash and Oblivion Mod Manager, and should learn how to use them effectively. It can be a bit intimidating, but start slow and keep going. You'll have 400 mods installed with 200 of them wrapped up in your bashed patch in no time. There are 100 mods I wouldn't even consider playing the game without, and I'm not exaggerating. The rest are just for fun and added things I enjoy in the game.

TES Nexus is a start for a reference of Oblivion mods.

Arwen's oblivion journal provides a personal commentary on a set of selected mods, for more of an intimate guide.

Knock yourself out!

Edit: Whup, Kodiak888 beat me to half of it... too tired.

Risen is great fun, but only if you like earning what you are after. and I mean seriously earning it, I've spent 8 hours (leisurely) trying to become a Mage and have yet to cast a single spell.

Fallout 3 - In my opinion Fallout 3 was awful (especially if you liked the first two), just a crap mod for Oblivion, Combat is far too easy - there is far too much ammo in the world and VATS just makes a bad system worse, the world is bland and repetitive giving little impetus to explore, and the main quest is short and uninteresting. Oblivion is much better, if still flawed

Oblivion - I have sunk many, many hours into Oblivion (with mods), just ignore the main quest once you have got about half way through, and just wander, and find all the hidden shrines and towers and villages and other random things of interest. Combat is....dodgy, people seem to dislike the melee combat but both Magic and Archery make the game very easy, but the world is very engrossing and more than makes up for it. About the Mods, I recommend playing through the game normally for a bit first, the Mods are good, but many ramp up the difficulty so until you are used to the game and combat don't worry about them.

Burnout Paradise - This game is a blast to play, but if you looking for anything other having fun speeding and crashing cars then you won't find it here. So yes good for gaming where you don't want to have to think too much.

@gernalEtrius look at my previous post for oblivion mods

The Orange Box
Risen
The Elder Scrolls IV Oblivion (I've heard a lot of reviewer praise, and a lot of player criticism)
Fallout 3
EVE Online
Company of Heroes

Edit:
Burnout Paradise
Sims 3

never tried

never tried

Fun on xbox360 with DLC however dungeons become repeatitive and eventually it becomes boring

never tried

@ EVE DO NOT PLAY IF U HAVE A SOCIAL LIFE, you also need to get the box with the special plane in the box its a shuttle worth 100million credits or whatever they use I forget some jerks will try to buy it from you for 50k there ripping you off, on eve there are a lot of camper pirates and they get annoying if ur trying to move things when ur alliance is offline.

COH is like dawn of warjust replace with ww2 units

I liked fallout3.  I found it to be very fun.  How ever after playing many hours of it it does begain to drag on.  Also the last time i played it it was very buggy, like it should not have been released kind of buggy.  But it has been quit awhile since i played it and now that all the DLC is out it should be fixed.