I’ve personally only used eBay a handful of times for purchases but have friends that use eBay with fanatical enthusiasm. I ran across this article posted on makeuseof.com that shows 4 alternative ways to search and track items offered on eBay and thought I’d repost.
eBay Desktop
The official eBay Desktop is an Adobe AIR app which mirrors all the searching, tracking, and bidding functionality of the site, plus filtering features, search history, real-time updates. There’s no need to keep refreshing your browser to see updates to whatever item you’re tracking. Enter a keyword and watch the search results update by themselves.

Lastminute Auction
Lastminute Auction search features auctions that all have current prices under $1 (not including shipping), and all have less than an hour to go. Register to keep favorite categories handy, and you’ve got a good chance here to snatch up a great deal.

Typo Buddy
Typo Buddy is a site on which you can take advantage of human error and hopefully find yourself a steal. When you do an eBay smart search for “Nintendo”, you get all the results with that keyword. What you don’t get are “Nintedno”, “Nintenro”, “Nihtendo”, or many other misspellings. Typo Buddy will find all of them, with the idea that the auctions’ low profile will let you swoop in and pay a lower price for the items.

Unwired Buyer
Unwired Buyer keeps an eye on your watch list and lets you place bids by phone in the closing minutes.

Original article on makeuseof.com
Related posts: