Paul , have actually thought of doing this myself many times , i.e. if I've bought a bargain of ebay and flogged it for a bit of a profit then invest that in another etc.etc. , trouble is I always sh*t out and get bugger all for the next one , similar thing to matey boy who put a paper clip on ebay and ended up buying a bloody house with his profits , although I think he had a little help maybe?
Good luck anyway mate and keep us posted .
Cheers
Swifty