You can get a smokin deal on the PC 7424 at www.premiumautocare.com. The only reason I suggest them is because they have a couple kits to pick from and they include a couple pads in one of them. Even if you pick the 7424 up for 100 bucks you still have to go get pads and the velcro backing plate. I hear that www.coastaltool.com sells them with the backing plate now days. Either place will give you probably the best deal on the internet.

Autopia is the place if you want to know more about this. I've never met a bunch of more friendly and knowledgable people. Definatly check them out. There is a great e-book you can download to get more info on stuff like this. There is a great chapter about the PC and swirls. Highly recommend it.