Last year, I got fucked for almost $900 for a digital camera.
I jumped through all the hoops that eBay wanted me to - to try and get my money back, but, of course, I got nothing.
I even persued it through PayPal, but they said that they could not help me because the sellers address was not 'verified'. Well, it was verified when I sent him the money!
It was partially my own fault - The guy who I won the camera from only had an eBay rating of 1.