I have spent over $100,000 on ebay. Sold a ton too. You have too be carefull. Look at the pictures, if you have questions, ask them, make them send pictures they can't easily fake, like putting something near a part and sending the pic. Make sure the guy has a lot of feed back. Don't buy without pictures, don't buy without the seller having a lot of good feedback, and ask a lot of questions.

I have only been burned once and it was a no feedback guy with no pictures. Be carefull.