Right now Josh's Frogs has 1 Fantasy Frog. I'd definately buy from them. I've ordered from them several times and they are always on time and my stuff arrives nicely packed. Aside from their really good shipping and customer service, they are a site sponser ! I have heard afew good things about GeneralExotics, but I'd buy from the site sponser that specializes in frogs.

My favorite;
Ceratophrys cranwelli
Ceratophrys ornata