help wit new games

ok so i just got my 360 last saturday and i love it to be honest its my fav gaming system ever so far i also had bought GTA4 and gears of war 1 with the 360 im pickin up bioshock tomorrow u guys got any other tips on any games i should pick up i play pretty much everything

Halo3, GoW2, Fable2, oblivion, CoD4 and CoD World at war Rainbow six vegas 1 and 2 lots more!!!!

Call of Duty 4, fallout 3, assassins creed