Oh jeez. I don't know if I could remember them all. Let's see.

A Perfect Circle - Mer de Noms
A Perfect Circle - Thirteenth Step
Beck - Guero
Beck - Sea Change
Beck Soundtrack
Coheed and Cambria - Good Apollo I'm Burning Star IV, Vol. 1: From Fear Through the Eyes of Madness
Deftones - B Sides and Rarities
Drakengard 2 Soundtrack
The Fountain Soundtrack
Incubus - S.C.I.E.N.C.E.
Killer7 Soundtrack
Muse - Absolution
Nine Inch Nails - The Downward Spiral
Nine Inch Nails - Pretty Hate Machine
Nine Inch Nails - With Teeth
Nine Inch Nails - Broken
Nirvana - Bleach
Nirvana - Nevermind
Nirvana - In Utero
Radiohead - Pablo Honey
Radiohead - Amnesiac
Radiohead - The Bends
System of a Down - Hypnotize
Tool - Aenima

I think that's it. Some I might have bought last year, but eh.