C.J.
Yay!! I love a good treadmill run:)
Go to Rockmyrun.com. They put together these incredible mixes of songs and they time it to meet different runs - so if you are doing a quick 45 or a full 2 hour, they have a mix for that!
It is FREE, but you earn credits each week and you can earn more by posting to facebook or pinning it, etc. but the two credits each week just by being a member (free, just sign up member) keeps you in a new mix every other week.
It will seriously change your work out life!!