Wow everyone! Thanks for the great response. I think I'm going to listen to SkinnyLegs and save my money for a while and learn to race on my SSRs...I will get the GP4000 tires (I was planning on getting them once I got new wheels, but I'll just get them now).

One thing though, since I only have one wheelset, is riding on the trainer going to completely destroy the GP4000s?