Decent 3 Player Games?

I have an Xbox 360 with 3 controllers, which is played on a lot when my brother and my friend come round at times. We usually spend all night on the Xbox, but the only 2 player game we have at the moment is Fifa 11. I'm looking for a game where all 3 of us can play at the same time if possible, but I can't think of any games.

Do you guys have any ideas? New(ish) games are preferred to be honest, but if there's any older games where all 3 of us can play simultaneously, I'd appreciate hearing about them.

Thank you :)

The Left 4 Dead games are good co-op games. Also, if you are competitive, try Call of Duty, probably Modern Warfare, Modern Warfare 2, and/or Black Ops

You can't play CoD 3 player can you? Also, I should have mentioned, anything but an FPS will be what I'm looking for really, as my brother and friend don't particularly like FPS games. As we'll be paying a 3rd each for the game, I have to get one they'll want to play aswell.