I have not had much luck finding web pages on PPC guns.
I just had one made, though.
I bought a model 10 S&W, 2' barrel. From there I added what I wanted from Brownells. It cost me about 550-600 total.
Also, there was an ad on here for a PPC gun and holster.
My PERSONAL opinion, which if you add a dollar will get you coffee, is that I shy away from the .357 caliber. To me, it adds a bit of unnessecary space between the bullet and the cone. I stick with .38 caliber.