I've found two second hand D3's. £2500 for a mint D3 body, under 1600 clicks. The owner went for a D700 as they travel a lot and wanted a smaller/lighter body. £1895 D3 with 46500 clicks. Was used for stop motion film, so has been in a strudy mount and on mains power for its current lifetime. Or a D700 at the new price of £1700? What does the D3 offer that greatly outweighs the D700? I know of the frame rate, and the 5:4 ratio option. Viewfinder viewable % is minimal concern, as is weight. DxO mark shows the sensors to have performance as close as to be identical, ever so slight advantage to D700 in hi-ISO. http://www.dxomark.com/index.php/eng/DxOMark-Sensor/Camera-rankings Is the weatherproofing very much better on the D3? this would be important to me. What else am I missing?