the one thing that irritates me about my D70, and I'd be interested if it's been addressed on the 50 and 80, is the remote control.  the sensor only picks up  from in front of the camera, which is all very well for taking pics of yourself but f all use for hiding in a bush and taking pictures of a bird from behind the tripod, say.  I prefer the old wire based systems which let you stand wherever you wanted... 

note on the VR lenses - the photo subgroup on BirdForum (http://www.birdforum.net/forumdisplay.php?f=293) is a good place to pick up real world experience on lenses (there are also some humblingly good pictures on that site), and suggestion there has been that  some of the VR's don't work at all well when mounted on a tripod as the reduction system then actually introduces noise/shake; better off always hand holding