Music, books, friends, coffee, movies, biology, guinness, shopping, the beach...
Fugazi, Nirvana, Radiohead, Muse, Autolux, Rasputina, She Wants Revenge, We Are Scientists, The Strokes, Foo Fighters, Cold War Kids, TV on the Radio, the Mars Volta, the Smashing Pumpkins, the Rolling Stones, the Eagles, Tenacious D, Pearl Jam, Bush, Soundgarden, Snow Patrol, Michael Jackson (his old stuff), Jeff Buckley, Warren G, Elton John, Alice in Chains, David Bowie, Pink Floyd, Queen, Ugly Casanova, STYX, STP, GNR, Cake, Sublime, Modest Mouse, the Darkness, Mudhoney, Le Tigre, Electrelane, Sleater-Kinney, Interpol, Tegan & Sara, Rancid, Electric Six, Spoon and many more that I can't think of right now.
Blow, Fight Club, Rocky Horror Picture Show, Reservoir Dogs, Pulp Fiction, Orange County, Friday, National Lampoon's Christmas Vacation, Pirates of the Caribbean, House of 1000 Corpses, Halloween, High Fidelity, Storm of the Century (and most other Stephen King movies), Brokeback Mountain, Harry Potter Movies, Garden State...
Law & Order: SVU, Law & Order: CI, Six Feet Under, Forensic Files, Aqua Teen Hunger Force, South Park, Reno 911, Will & Grace, Project Runway, Ghost Hunters
Harry Potter Books, Most Stephen King books (the ones I've read so far), suspense and murder mysteries, Greg Iles Books