Musical Inspiration

As I mentioned in a previous post, my goal is to run the Disney Princess Half Marathon next February. So now it's time to get down to business--important business. Like what music should I put on my IPod for such an endeavor?

Of course, being a girl of the '80s, I've got my fair share of MC Hammer, TLC, Beastie Boys and Rob Base on there. I've also got some AC/DC and Van Halen.

But it's certainly not enough music to carry me for half a marathon. Any suggestions for some really good running/workout/get you revved up songs?