Are you tired of checking your "My eBay" account for soon ending auctions or getting unreliable reminder mails? Take a closer look at Baywatch.
It catches the actual auction opened in your frontmost browser window and sticks it right into iCal. You can specify the reminder alarm in the preferences and if you wish to add another auction the "Refresh button" is your friend.
Adding an auction to iCal is as simple as reopening the auction by clicking the URL in the event information. So you can easily organize your eBay auctions and never bother about any missed opportunities.