Hi, Adam. The only one I remember on the shows was done in the Southwest. Frankly, I am kind of surprised that you would choose this with all the great natural stone (granite, slate, soapstone) available in your area and the man made materials might even be better than these.
But if you are determined, look in your local paper and phone book. Call small concrete batch plants. Call cabinet stores and see if they know of anybody. That reminds me that you might ask to be sure that your cabinets will hold the weight of the concrete. And what about the joists?