I'll be happy to vouch for you as well (although I 
can't remember if I've ever bought directly from 
you).  That's weird that they want more than eBay 
feedback--I've never heard of that either.

I agree with Melissa, though:  under no 
circumstances should you send the cel without 
receiving payment first.  I would never do that 
(unless maybe it was someone I had dealt with many 
times before and trusted.  But even then, it 
could be a bad move.)