For those of us in the press (Ken), we laughed when we looked at the EXIF data of Nikon's PR photos of the D3. They were shot in a studio, so of course Nikon had them shot with an appropriate camera: a $30,000 Phase One P45 back.
http://www.kenrockwell.com/nikon/d3/h3d-1.htm#
http://www.kenrockwell.com/nikon/d3/h3d-1.htm#