Im selling a item on ebay right now for 49 dollars(mp3 player) it costed me 300. So I want to atlease get 100 for it. I have 23 hours left and afraid someone gonna come in at the last min and buy it for $50. So my question is how do I set things up that if someone bid on the item it automatically outbids them to make them place another bid? Or close because reserve not met?