I helped out own 52 xbox 360 games as of 12/13/08. PS3, 6 games.
Action: Dead Rising, DMC4, U Marvel Alliance, Assasin's Creed, NG2, Mirror's Ege, Prince of Persia.
Sandbox: GTA4, Saints row 2, Crackdown
Sports: NBA 2K7, 2k8, 2k9, College Hoops 2K8, APF 2k8, Virtua Tennis 3
FPS: Condemned 2, The Darkness, Bioshock, GOW, GOW2, Far Cry 2, Orange Box, Rainbox Six Vegas, GRAW 2, L4D, COD , COD 4, COD WAW, Halo 3
Racing: Forza 2, test Drive Unlimited, PGR3, PGR4, Sega Rally, Stuntman Ignition, Mifnight Club L.A, Burnout Paradise
Music: GTH 2, GTH 3, GTH WT, Rock Band 2
RPG: Lost Odyssey, Blue Dragon, Tales of Vesperia, Oblivion, Mass effect, Fable 2, Fallout 3
Fighter: VF5, MK vs DC, Soul Calibur 4
PS3: Vakyria Chronicles, Resistance, Resistance 2, Ninja Gaiden Sigman, MGS4, Dead Space,
