I click the blue "place Bid hyperlink without entering a price. then I enter my max price (an odd number) and add 0.1p after it. It is like sniping, eBay does it for ya. Also here's an anecdote:
I was bidding on a DC07, my dad used the method I mentioned above and he bidded £25.01 within the last 30 seconds. Then somebody bidded £25 at the last 7 seconds or so xD