About Beijing2008 from DHGate. He has good prices, but don't forget that you have to pay for the shipping to the US. Example:
He is selling iPod Video 30GB for $213 pretty good price. But you have to add $23 for the shipping. Total: $236 and he takes 10days to process an order.
On amazon you get the same iPod for $239.
I don't think it is worth to wait 10 days to save $3.