Music of all sorts, art, painting, classic monster movies, (some) anime, books and more books, dancing, singing, computers, gaming (table top and online), sparkly things, European history, particularly British renaissance/medieval, because I grew up in the SCA with my mom), fairy tales, certain clubs, driving with my music too loud, driving a long ways to see concerts, meeting incredibly awesome people, "geek chic", collecting DVDs, karaoke, speaking Japanese, speaking a tiny bit of the following: German/French/Italian/ASL, musicals, theatre in general, actually going on dates (real dates, not sitting at someone's apartment dates, although those can be fun...yay tangent!), CXS fairies, stompy boots that make me tall, fun hair colors, (some) body modifications, fake dreadlocks, fencing, kittens, bats, zombies in general, zombie movies, and a bunch of other stuff that you most likely won't read.
Honestly, I've met a lot of the people on my "want to meet" list (thank you Dragon*Con!) and all the others are dead. Unless I'm forgetting some, which I probably am, as it is late, and I'm a bit tired. Oh! David Bowie. Yes.
A few to nibble on, if you want the meat of this answer, you'll have to talk to me about it. The Cruxshadows, David Bowie, Ego Likeness, older Cure, The Decemberists, Regina Spektor, Abney Park, The Dresden Dolls, Flogging Molly, Wolfsheim, VNV Nation, Joan Jett, My Chemical Romance, T. Rex, The Last Dance, Voltaire, Rasputina, Ayria, The Clash, The Ramones, Goldfrapp, Depeche Mode, Broadway, Alice Cooper, Angelspit, and, well, a whole lot of others...
*sigh* This one is almost as hard as 'Music'. Velvet Goldmine, Amelie, Shaun of the Dead, Phantom of the Opera (all of them), Battle Royale, The Boondock Saints, Equilibrium, SLC Punk, Run Lola Run, every zombie movie ever, same for Hitchcock (but especially 'Rope', 'Psycho', and 'Vertigo'), Rent, everything by Hayao Miyazaki, musicals and romantic comedies, A Very Long Engagement, horror movies I can make fun of, at least silently, The Princess Bride, pre-1980 post-apocalyptic movies, Susperia, Nosferatu, Dellamorte Dellamore, Labyrinth, The Dark Crystal, 80s teen movies, Disney movies with happy endings, Mel Brooks stuff (Young Frankenstein!), and, well, more. I'm sure I left out one or more of my favorites.
Buffy, Firefly, Heroes, Dr. Who, Kitchen Nightmares, talent shows like SYTYCD?, once again (some) anime, but honestly, I mostly watch movies and/or my computer screen.
Oh gods, here it goes again... Anything and everything by : Neil Gaiman, Orson Scott Card, William Gibson, Phillip K. Dick, Neal Stephenson, Terry Pratchett, Robin McKinley, Poppy Z. Brite, Robert Heinlein, and Laurell K. Hamilton. I also love classics (Dickens, Bronte, etc.), poetry (mostly pre-1920-ish, and, of course, Poe), most cyberpunk, some sci-fi, some fantasy, Dante's 'Inferno', the plays of Shakespeare, 'The Odyssey' and 'The Iliad', 'Memoirs of a Geisha', philosophy books, books written for younger people than I, books about everything. Essentially, I read about 5 to 8 books a week, I've tried everything. Please, feel free to make recommendations! I appreciate them!
Is a REALLY good TV show. REALLY. I have a slight Mohinder crush, and I think Peter and Isaac are hawt. Plus, Hiro Nakamura is the best character ever on television.