It probably depends on what exactly your selling. One thing i discovered with selling digital info (or anything you have a large supply of the same thing) is that you can use auction-style with really low starting prices to attract a large number of bidders. At the end of the auction you can then send a 'second chance offer' to all non-winning bidders! this way you can get multiple sales with the effort and expenses of listing 1 item! Its a great way to get around ebay's rediculiously high fees and maximize time/profit!