I've had better success with eBay after using their buyer requirements option. It lets you ban users who do not meet your requirements from bidding. As a resul

I've had better success with eBay after using their buyer requirements option. It lets you ban users who do not meet your requirements from bidding. As a result, my last batch of sales (3 computers and a few other items) had all of the bidders paying immediately upon completion of auction. Whereas my previous batch of sales when I did not know about this option, I had 3 time wasters who never posted payment.