Pricepirates is an original application that helps you choose the best items in eBay. It works in a very simple way: The program supports various versions (including Spanish version) in Ebay. In this way, you just need to type the word and set some parameters, such as the price range and the maximum number of bid.
The program lets you create a list of all the items you want to keep track of and see their details and images of products.
Pricepirates also lets you access Amazon's database, from which you can compare prices. EBay has direct access to the website, so you can complete your bids from your user account, or you can change your account settings.