General nerdery, RPG's (electronic or pen and paper), Music, Complaining
Someone who: knows that bad puns are fun (even if they're not actually funny), can type with their toes (even if it's very slow), will agree with my wild proclamations (even if they're manifestly stupid) and/or shares a majority of their DNA in common with a monkey (I'm looking at you, Charles Darwin!)
I'll give most things a chance, but I've been listening to a lot of EBM (Neuroticfish, Covenant, VNV Nation) and Industrial (NIN, Apoptygma Berzerk, Læther Strip).
Star Wars Trilogy (the non-special-edition version!), Memento, Donnie Brasco, Big Lebowski, Wayne's World, Big Trouble in Little China. Just to name a few.
Assorted animation, both domestic and Japanese. The Bruce Timm DCU stuff (Batman, Superman, JL/JLU, and Batman Beyond). Queer as Folk, Six Feet Under, The Sopranos, Law&Order: SVU, and Battlestar Galactica.
Terry Pratchett's "Discworld", Harry Potter, "Lord of Light" by Rodger Zelazny, "The Case of the Toxic Spelldump" by Harry Turtledove, Artemis Fowl, The Book of Lost Things, assorted comic book trade-paperbacks.