Mainly bands (in no particular order):
Trivium
Opeth
Children of Bodom
Audioslave
30 Seconds to Mars
Breaking Benjamin
Godsmack
Avenged Sevenfold
Metallica (their 80's stuff)
A Perfect Circle
Tool
Agalloch
Avenged Sevenfold
Bullet For My Valentine
Dream Theater
Iron Maiden
Killswitch Engage
Led Zeppelin
Lacuna Coil
Lostprophets
The Mars Volta
Paradise Lost
Pink Floyd
and various soundtracks to movies, anime, etc...