Yeah, that's the stuff Adam. General consensus seems to be a tin does 2 wheels though. There's a seller on eBay selling a 'package' of 3 tins of paint and 1 tin of lacquer for £26 incl postage, which seems very reasonable.
No photo's of the new wheels yet mate, but as you're curious (and I know you like your rims), this is them: http://www.tsw.com/alloy_wheels_jarama.php
I've got the one's with the black spokes. (Although thinking of changing the spoke colour to GM - hence the above query).