Whats the site?
How long ago did you send the money?
If I was you I would open a dispute in paypal and tell them he never sent you the 'goods'
Paypal are very biased towards the buyer, they will reverse the transaction on his account and hold the money until he can prove that he is within their terms and conditions which I doubt he will be able to.
Unfortunately I think you only have 8 weeks from the transaction date to do this.
One last question, when you sent the money was the address
fergus8@grimmedinyoureye.com