Alan Wake
Gears of War 1 & 2
Mass Effect
Deadly Premonition
Lost Odyssey
BlazBlue: Continuum Shift
Catherine
And there are some absolutely incredible XBLA games to get as well:
Braid
Shadow Complex
Bastion
--
http://gamercards.exophase.com/4831.png
http://i51.tinypic.com/2zpi5w4.png <-- How I look as per Clogged_Artery (Thanks!)