BidzDown.com's auction model is a declining bidding that is extremely attractive to buyers due to the fact that the power of the auction process is going down instead of going up for ten full days.
BidzDown.com also has a unique fee structure. It is 100% FREE.
However, the most interesting innovation is still an online tool that lets you import your feedback from eBay and gives you all the credit for it. Beside this Seller can create as many custom categories that they want.