I got it at popflash.com (Tony Rose) only b/c I've bought a lot of stuff from them in the past. They are out of stock, but Stephen Gandy (cameraquest.com) still has a few in stock. The price is US$6900.
Incidentally, I received the camera yesterday, and I put a roll of film in it. I have it here at work with me today, and I intend to test out the camera after work today. No meter, and I was too lazy to haul my Sekonic, so I'm going to use the sunny 16 rule (it also happens to be a sunny day today, thank goodness).