http://forums.teamestrogen.com/showthread.php?t=12441

here's a thread that i started "bikes that fit women under 5'4" "

I included inexpensive and expensive bikes, I hope it helps you.

I bought something on ebay, my bianchi veloce. we already knew Bianchi's reputation, so it seemed like a good deal. The seller said it was lightly used.
In fact; The wheels were out of true and the front wheel hub needed to be rebuilt (it had already been rebuilt by someone who mixed campy and shimano parts inside a campy hub!! It was NOT lightly used.
Since it IS a good bike, after all, it was worth putting the work into it.
But with a cheap knockoff, you are probably going to pay more than what it's worth. so what they say is true, buyer beware.