Welcome to the USFA forum. Like everything else in CAS, once you get started buying, you just can't seem to stop. Check the on-line auction sites like gunbroker and guns america to get a good feel for average prices, and every so often you can find a fantastic deal.
I have bought from Phil Rezac in Nebraska with good results, and I know there are several other CAS dealers that get great reviews from the CAS community.
Feel free to ask questions about models, dealers, etc. as we all want to help, and it also allows many of us to talk even more about one of our favorite firearm manufacturers.