Lets see...
XBOX:
Halo
Knights of the Old Republic
Halo
Brute Force
Halo
Crimson Skies
Halo
Myst III
Halo
Hmmm...did I mention Halo?
PC:
Age of Mythology: Titans
Age of Kings (my expansion pack cd is scratched up too much)
Rise of Nations: Thrones and Patriots
Halo: Combat Evolved (slightly different from the XBOX version)
Jedi Outcast
Jedi Academy
Fate of Atlantis (works if you emulate DOS mode in Windows XP)
I am eagerly awaiting the arrival of Halo 2 (surprised?), Fable, and KotOR II. Not to mention my new job means I can get these at discount
.