anime and manga (i like all kinds of stuff from sci-fi to comedies, but in particular i like shoujo - i.e. girly - stuff like Sailormoon, Magic Knight Rayearth, Oh My Goddess...actually the series X (aka X/1999) is my alltime favorite anime/manga...as far as non-Japanese animation goes i really love Invader Zim, The Simpsons, and South Park)
DJing (i do a weekly industrial/gothic/dark alternative night, and i love it!)
political activism (especially that with an anti-war, anti-capitalist direction...)
2D fighting games (i'm a Street Fighter fanatic, but i also love some other ones like King of Fighters, Capcom vs SNK and Samurai Shodown...)
Japanese food (my favorite food in the world is Japanese curry rice, and unagi donburi and sushi aren't too far behind)
collectable card games (my favorite ones are Magic: The Gathering and Vampire: The Eternal Struggle...)
cats (i'm the happy owner of two)
socialism (and when i say socialism, i mean genuine, grassroots, socialism from below based upon working class democracy - not top-down, totalitarian 'socialism' like you might find in Cuba, North Korea, or the old USSR and eastern bloc - which in reality is just bureaucratic state capitalism. real socialism = worker's power)
martial arts (judo and brazilian jiujitsu are my favorites, and i'm also a *huge* fan of mixed martial arts/cage fighting/ultimate fighting type stuff...)
watching TV (i actually don't watch too many shows, but i'm a big fan of Buffy, Angel, Lost...and my favorite show of all time is Doctor Who...)
intelligent debate (get me talking about a subject i'm into and i can discuss it for hours!)
pro wrestling (i love it - and following it is probably the geekiest of my various geeky hobbies...)
go (the best board game ever made...)
pizza (anchovies, anchovies, you're so delicious...i love you more than all the other fishes! *gives you a stamp on your geek card if you get this reference*)
roleplaying games (especially White Wolf ones like Vampire: The Masquerade)
goth/rivethead/punk fashion (although generally speaking i'm pretty casual - jeans and t-shirt type...pretty much invariably of the black variety, although i'm known to dress up more from time to time)
reading (my favorite author is George Orwell, my favorite work of fiction is 1984, and for non-fiction, it's A People's History of the World by Chris Harman - well worth buying, but available online for free at http://www.istendency.net/node/view/7 )