When I do work out and it's not yoga, I listen to:
Korn (any and all albums)
Disturbed(all)
Soil (all)
Godsmack(anything but acoustic)
I also like to toss in a little Metallica, Slipknot and some of Kid Rock's songs like jackson, mississippi and bawitiba(sp?lol)
I've got a new CD and haven't worked out yet with it but Pantera rock!! I can't wait to try them out. It's something about the energy around the hard rock/metal bands. They're just awesome.
Gotta love the carrot!