Brian - hey that's serious stuff
😛 . Ha!
RJ - I use
EZSNIPER . It seems to bid in about the last 5 or 6 seconds of an auction. I've lodged about a dozen bids this way; won a few, lost a few more, but stuck to my maximum bid. I guess the reliability of these services depends on their servers and infrastructure, and one day I'll miss because a server goes down. And I have once missed out when my bid at the last minute was a few cents higher than the highest bid, but didn't clear the margin to the next highest bid that ebay would accept - that was annoying!
One thing to remember is that the winning price is effectively determined by the nearest loser - the selling price is only a bid margin above the second-highest bidder. A few times I've been the second-highest bidder and thought "Gee if I'd only bid another $5 I would have won", but maybe the winner had actually bid another $50! You never know if you don't put your money on the line.