In reply to Ant Stanley: If you find them on a good deal, just get the Rockcentrics. They work fantastically, they're cheaper, super established British company if that floats your boat and what's more, you can instantly spend the saved cash on a much coveted (because they are so sexy) cam. Then, you'll sit at home, look at your winnings and thank me. Which cam? Well now... That's an entirely new post! (Red bd one for me).
Seriously, when it comes to building a rack, things can get so expensive, it's worth trying to get the savings where you can. I would never ever consider the WC's as an inferior product... unless the sponsorship dude from DMM was standing next to me!
Welcome to the world of "where the hell has all my money gone"