I had this done to me by a guy from wales for a cd drive a few years back, I toyed with driving there and knocking on his door but that would have cost more than the amount I was stung for. I put the sh*the#ds email address on every mailing list, porn site and signed him up for everything I could find for about 2 months after, he probably changed his email address anyway but it made me feel a bit better at the time (pathetic I know :-( ).
I'm in Bedfordshire, let me know if he lives near me and I'll go around a have a word!!! :-D ;-)