Obviously for working out, intense music is best. I'm kind of getting bored of listening to the same motivational hardcore and metal everytime so i've started to experiment with hip hop as workout music. and what do you know, it's perfect.

I'm talking stuff that goes HARD obviously.

Think:

http://www.youtube.com/watch?v=3dHi2xIuXx4
http://www.youtube.com/watch?v=Q2Yama59g-o
http://www.youtube.com/watch?v=9Bvl8F-l0Eg&feature=fvst

fire away, probably only theshipment