If money did not go into your paypal account, do not ship the item if that was the arranged payment method. End of story. Report the person to ebay, go on with your life.
Norcent..... you may want to go to the main ebay site, and read through the scam info they have on there......
Even if they did get that alienware laptop you have, wouldn't the joke be on the scammer? lol. (I vaguely remember your list of trouble that the laptop has).....