Listening to music, attempting to draw, engineering, flying (both model aircraft as well as the real thing), warbirds, and driving.
That is a good question... Let me get back to you.
NIN, Tool, Ozzy, System Of A Down, Type O, Snot, Slipknot, Classic Rock, Electronica, Techno... The list is endless.
Anything by Mel Brooks, anything by National Lampoon, anything that has Johnny Depp (except blow, didn't like that one), anything Marvel comic /DC comic, Eternal Sunshine, The Jacket, Anime... and so on.
Family Guy, Robot Chicken, Ghost in the shell: stand alone complex, all of adult swim, discovery channel, history channel.
Bram Strokers Dracula, Akira, assorted manga, and also the Guide to Windows XP.
I have a few, but I keep them to myself.