The U.S. price for the Pentax 645D has just dropped a massive 1800 dollars. This may tempt some to jump from full frame 35mm to something a little bigger, it also could be seen as an indicator that a Pentax 645D II is on its way. Rumors are it could be 60 megapixels, a larger sensor (although not FF 645), and priced significantly higher than the original 645D.
Pentax 645D at B&H for US$6996.95
Pentax 645D at Amazon US via Adorama for US$6996.95