Off the top of my head, I have at home Modern Warfare 2, LA Noire, Assassin's Creed 2, Uncharted 2, Red Dead Redemption, Batman Arkham Asylum, Heavy Rain, and Borderlands.
I intend to trade in MW2, LA Noire, and maybe Red Dead.
The rest are fair game. Unless I decide I really need to play Arkham Asylum more in the next week or so.
Oh, and because I'm bored and avoiding homework, I would recommend with little hesitation Uncharted 1, Demon's Souls, Vanquish, Fallout 3/New Vegas (the only
real way to play those is on PC, with a bajillion mods, but if needs must...
), Battlefield: Bad Company 2 (if you get this with the online pass I will play with you, also Vietnam expansion is totally worth $15), Bioshock, Mass Effect 2 (you don't need to have played the first one, there is a comic that will catch you up on the major plot points), Little Big Planet, Dragon Age: Origins (Philly will disagree with me, and again, PC is the best way to play), Dragon Age 2 (everyone but Aldaris will disagree with me, and again, PC is the best way), Just Cause 2 (I have put about 140 hours into the PC version, and have about 50% completion. Still not tired of it), Portal 2, NCAA or NFL 11 (the new versions ares out, but only features minor changes for double the price), and flower for something entirely, entirely different from anything else you've ever played, but worth it nonetheless.
Also, I play a lot of violent games. I never really realized how many before...