Hi, Everyone. I currently have a D90 and several DX and FX lenses. I am thinking about upgrading, but can't decide between a used D7000 (inexpensive option) or a D600 or wait for the D7000 replacement (which I suspect will be called a D7200). Here are my questions: 1) for those who have upgraded from a D7000 to a D600, is there anything about the D600 that you don't like as well as on the D7000 (AF point coverage, for instance)? 2) Is the high ISO noise performance of the D600 hugely better than on the D7000? 3) Do the larger NEF files of the D600 slow down your workflow measurably? 4) For photography that doesn't need extreme telephoto lenses (like birding), do you miss the extra reach of DX? Thanks for your help.