I’ve been using AuctionSniper to bid for me at eBay now for 18 months or so, and it’s won me a heap of auctions. You get your first three auction wins for nothing, and then they start charging a modest (1% of winning price to a maximum of US$9.95) fee for their service, but only if you win the auction. A failed auction draws no fee and doesn’t cost you a free snipe if you’ve got freebies left.
Also, you can get another three freebies for every “friend you sign up”. So, if you’re an eBay user and interested, sign up via my link below. You’ll thank me (and I’ll thank you too)!