Well, I just wandered down to the computer to say prettymuch mostly what William just said.
The one thing about some of the legacy, third-party Nikon-mount autofocus (lotta qualifiers there) lenses is that some need their firmware upgraded to make the autofocus work. Doesn't sound like that would be a problem for you, tho.
Other little sidenote/disagreement is that I think that the megapixels are pretty important. We have 6.1, 12.4 and 23.9MP Pentax cameras...and I'll take the higher resolution any time (all things equal). You just leave yourself with more options if you have more data (and the MP = 1s and 0s here).
But I completely concur otherwise.