For those of us that bring an MP3 player to the gym, what's on your playlist? I'd love to hear some suggestions.

I've got:

Albums (mostly to make time pass quicker on cardio):
Dr. Dre - 2001
Nas - Illmatic
Daft Punk - Discovery
Ice Cube - Greatest Hits
Justice - Cross

Songs (mostly to get pumped up):
Drowning Pool - Bodies
Some SOAD like Boom!, I-E-A-I-A-I-O, Chop Suey
Disturbed - Down with the Sickness
A couple Slipknot songs
DJ Green Lantern - Invasion Remixes
A few Biggie songs/remixes
Techno like Ministry of Sound Bigtunes