With over 7.5 million users generating 5.6 billion dollars in sales in the second quarter of 2003 alone, eBay has become a fundamental part of contemporary American life. Still, there are many people who, while comfortable with a computer and the Internet, aren't completely sure about how to bid, buy or sell on eBay. Or, if they are familiar with eBay basics, feel like they are at a disadvantage when pitted against more experienced eBay users. They're...