Now on to some rules buying rules on ebay
#1 Only pay be paypal. NEVER send money orders, cashier checks, etc... Paypal is the most secure method for purchases. If you send a M/O and the seller never delivers besides take them to court (9/10 they are from another state. Probably CA), it's not much you can do.Ebay may suspend their account, but that won't help getting you refunded.
#2 If you don't receive the product within two weeks, file a dispute with Paypal. If you wait past 30 days you're out of luck.
#3 Examine the feedback. Nuff said. Don't always buy into negatives though. Buyers lie just like sellers. If you see a lot of negatives that are consistent though that should raise a flag.
Everybody should and probably already does know this though