join
http://mini-zracer.com/forums/ and post in Mini-z market place saying what type of mini-z you want and how much your willing to spend.
if you dont know what kind you want:
racing: if you can get a MR-02 get it, if not try for a MR-015. dont buy MR-01, it is crap and you cant get a MR-03 for under $100
messing around the house: MA-010