So last night and this morning i was trying to get an Xbox 360 and kept getting outbid!
I am not a big gamer so I will leave that advice for the others but I have a great free program that helps me not get outbid. It's called a sniper program. It makes it so you don't have to sit at your PC and keep bidding when you get outbid. You just set a max price that you will pay and when you want to place your bid. I usually set it for 30 seconds left in case of PC slowness. Mine is called Auction Sentry. I got it for free but I see that they are charging for it now. I'm sure that you can find another 1 for free.