A fellow Hound recently tipped me to this site: http://www.4and20kitchenantiques.com/
At present it is focused on true antiques, those thick, handmade rarities from an earlier age that make copper lovers crazy with want. But I hear from the friendly and erudite owner, Ginger, that "newer" things may soon be on the horizon.
The site is well worth a close look. Not only has Ginger done an excellent job of refurbishing these treasures (hence the high asking prices), she has also penned very informative and historically accurate bits you won't find anywhere else.
WARNING: Copper addiction can start suddenly after visiting this site, even once.