Well, my fear and paranoia got the best of me. I deleted every single one of my mp3s, even the ones that I downloaded legally. I just did it in one fell swoop. 35 GBs worth-- oh yeah, it hurts.

I guess this is a lesson for me. I find it kind of odd that they never really mentioned that they had beef with me downloading files, just for distributing them.

Thanks for all of the suggestions everybody. If I had more time and info about my situation, I might have tried some of them. But as it is, they got the boot.