Running soundtrack

What do you listen to when you run? Any suggestions for new music? I have my favorites—I've been listening to Prodigy and the Run Lola Run soundtrack since college—and the crappy pop songs that have a good beat (Lady Gaga, here we come!) but as my runs get longer, I'm going to need some more music. I've found I need to have some kind of beat playing in my ears or I get really bored, even when I'm running outside. If I'm on a treadmill at the gym, my iPod is as loud as it'll go just to distract me from 1. the person running next to me and 2. the crap that always seems to be on the TVs (Fox News? Really?). My miles start increasing significantly starting on Saturday, so the hunt is on!