For auctions, the only way to buy is this:
1. Figure out what your maximum acceptable amount is. If you say "$50, but if it was $51.50 I'd buy it too" then you maximum is $51.50 and not $50. You need the absolute maximum you are willing to pay.
2. Add some odd change number to the above number. If it is $51.50, make it $51.76 or something. Just in case.
3. Bid within the last 10 seconds of the auction, hopefully within the last 5. How do you do this? With 2 tabs: one showing the auction with count down, the other one with your bid already entered and ready to submit except for the very last Submit button.
4. Refresh your countdown tab once within the final 30 seconds. Then as the tick mark goes to 10 seconds, start counting yourself "10, 9, 8..." and switch over to your bid window, as you count to "5" click on the submit button. If you feel brave and have faith in your broadband connection, you can go down to 3.
If you lose the bid, it wasn't meant to be yours.
The key is to submit one bid and one bid only that represents the maximum amount you wish to pay, as close to the end of the auction as possible.
Jack
Edit: Did I just describe how to snipe?