I hope to update this with everyone I've bought and sold from in a bit, but to start:
I sold to:
Purkinjefibre: Carrera seats. great communication, very nice in email, superfast payment
I bought from:
Jason Cullen: seat belts. they didn't fit exactly and Jason took them back, covered half shipping back. great guy to deal with.
ChrisC(atlanta): I bought a set of polished Cup IIs. Chris was great to work with, very patient with loads of questions and email, but best of all the wheels arrived expertly packed and better than expected condition!