I bought a Techtonics 268 cam which is a little bit more aggressive than a GTI cam. I'll be fitting it in the next couple of days.
It was $130 plus $90 shipping (OUCH!). Even so $220 for a cam is better than £220+ for the equivalent Kent cam. If a couple of people ordered them at the same time you could save even more as I suspect $90 shipping would cover more than one cam.