If you get frustrated with ebay’s clunky search tools you might like the-winning-bid.com’s approach. The site provides you with sliders and drop down menus that let you tune your search and it also provides keyword suggestions based on what you’re looking for that you may find helpful. Honestly there’s not much here that you won’t find in ebay’s advanced search tools aside from the decent keyword suggestions but the interface is much improved over ebay’s setup. There’s a small tradeoff in that they’re paying for this by adding google adwords on the right side, but chances are most folks have already learned to tune those out anyway if you spend any significant time browsing the web.