>Had no clue about the smaller view in the viewfinder. I >wonder if the DX view in the D800 viewfinder is smaller than >the normal view in the D7000.
Yes it is. The eyepiece magnification of the D800 is 0.7x, whereas the D7000 is 0.94x. The same scene through a D7000 viewfinder will appear about 1/3 larger than it does through a D800 viewfinder (with the D800 in DX crop mode).