#1. "RE: What will you do with your "old" camera?" In response to In response to 0
I can tell you that my old D70, once my pride and joy, suddenly looks very old and decrepit even next to a D200. So I fear yor D70 may never be touched again.
I doubt an 18-200mm lens for FX will appear, firstly because it will be enormously large and heavy, and perhaps more importantly because those who shoot FX take quality seriously don't want the compromises inherent in a 'one-size-fits-all' lens.