Dave,
The family I got Gus from just wanted to breed their female once, so I don't think they're still breeding. However, the breeder that Gus' dad came from is E-Z Brook. Their website it http://www.petsonsale.com/members/ezbrook/index.html
Gus' father is Snugglzzz, and he looks just like him! One thing to be aware of, though, is that Gus has hip dysplasia, which we just found out (he's 4). I don't know where it came from and is rather unusual in corgis, but just be careful to get a history. Good luck!

P.S.-Where in New York are you?

Did you ever get your corgi? I also need info. We don't know where to start.