So I heard from several folks in response to my request, all of whom recommended Lewis Co.
http://lewiscofloors.com on Atlanta Highway. My husband dropped
off our rug a week ago, and we just got it back yesterday. The binding is a perfect match the
carpet and they even were able to cut a "notch" in the carpet to accommodate an HVAC vent in the floor.
My only complaint is that the carpet isn't "square" on all the corners, and is an inch or two too wide
for the room -- although I suspect part of the problem might be a slightly un-square room (old house)!
Overall, the cost ($52) was lower than Dalton Carpet (which would have been 70-80) -- and is *much* cheaper
than buying new 9x12 rug -- and the result works just fine for us!