Thom on D7100 or D400 first...

Not only is there enough room for a D7100 and D400 within the DX lineup, the D400 is also the chance to have a lower priced PJ/sports/wildlife camera without killing the D4.

Imagine the semi-pro PJ camera to be full frame: Say a D800H with 24mp and 8-10 fps. Who will buy the D4?

Now imagine the same camera with 24mp and 8-10 fps, but with a small DX sensor: The D4 and D400 will still be very well differentiated.

Walter