Audio. Getting outside every once in a while.
I'll start with you.
The Prodigy, Radiohead, Aphex Twin, The Cinematic Orchestra, The Bad Plus, Rjd2, Dabrye, Brad Mehldau, Miles Davis, John Coltrane, Art Blakey, Boards of Canada, Bob Marley, Concord Dawn, A Cloud Mireya, DJ Shadow, The Doors, The Dead, Classical Music (particularly Chopin + the Rach + Wagner), Pink Floyd, Prefuse 73, Sublime, Bjork, Underworld, Tina and Bunny (they like the cars that go 'BOOM'), Unkle, Nine Inch Nails, Bonobo, Wax Tailor, James Brown's "Sex Machine," Gary Numan's "In Cars". Umm...a-ha?
American Beauty, Waking Life, Bloodsport, and anything else remotely entertaining or cheesy
Usually the Discovery Channel...and all the other educational ones.
Textbooks...and fantasy novels
People with talent, ideas and ambition.