I listen to any and everything by Pink Floyd. From the old times, my aunt introduced me to Purple Rain by Prince.
Toxic by Britney Spears if you're into upbeat techno sorta stuff. Listening to the lyrics, you'll find out why you should listen when you're stoned. ^_~

Ben Harper is probably the only artist I like more than Pink Floyd. Awesome soft reggae type. Bob Marley, for the purpose of losing yourself in a world that looks like digital mixed with paint (very ambient), the Katamari Damacy soundtrack is FANTASTIC! ^_ ^

Listening to it now, typing's a bit difficult. ^-^

9 gigs of music here. Mostly all albums, though. Not much pirating. ^_~