Hop on over to www.GunBroker.com and simply type in "Walther TPH" in the search box. There are three stainless American TPH's and one blue German TPH on there now. The blue German Walther TPH is a bit pricey, but I don't think they sell much cheaper than that. The three stainless ones don't seem as high priced as I remember them selling for previously. I used to see them for well over $800.
I already have several TPH's in 22lr stainless, One Interarms Stainless NIB in 25acp, and One German 22lr NIB. That's why I'm still in the hunt for an Interarms 22 in blue. I don't know what I'd do if I came across a German 25...or Interarms in blue 25.