I'm thinking about selling my 360

[coolestguyever]

As a Gears of War and Left 4 Dead hater, the only game(s) on that list you can't play on PS3 is Halo 3.

I say sell the system since you have a PS3 already. Enjoy Killzone 2, InFamous, etc. Then enjoy the hell out of Gran Turismo 5 when it comes out.