can’t wait to read your experiences
@Bobby Lee
You are right, the only point is that where I live it is rather difficult to compare two cameras without buying them. The stores that sell Leica and Nikon at the same time AND have also such items as an MM AND a D800E in stock and are willing to let you make a comparison are rare (I fact I wouldn’t know any in a radius of 1000 km, but I may be wrong).
From what I have seen so far, I expect that the D800E is as good in resolution as an MM will be. The main difference will be in the high ISO range, where it will be interesting to see how the monochrome-CCD will hold up against a D800. When I process high ISO-file from the D800 to black and white, I get some film-like grain (maybe a bit harscher, though). This is not much a problem for contrasty pictures, but for eamble gets real soft when this grain adds to some lens-weaknesses.
I intend to use the MM in low-light situation only (art-nudes).