Johnny the Homicidal Maniac
Most Doom Metal
Speshully Funeral Doom
Maximum The Hormone
Vidya Games - all.
Poetry - mostly modern stuff but also some of Blake and all of Milton.
Folky classical music.
Uhh, that's all I can think of for now.
Oh, and vandalise if you feel the urge.
I do! Hi! You're a Pretty Cool Guy