On the other hand, I have a D700 already, and if I need continuous shooting speed, I was thinking I could use it and I would still have its high ISO/low noise capability. I'm also thinking with all those MP's when I shoot a warbler, for example, and need to crop it, I'm going to get a cropped image of considerably superior quality, and a much larger number of pixels for printing than I can get with the D700.
Plus, if I can shoot with the D800 at ISO = 800, with no noise, as I can with the D700, then generally for most wildlife conditions, I'm going to be okay. How's the D7000 at ISO = 800, as far as you are concerned?
I've got both a D4 and D800 on order, but I'm going to have to cancel one of them, as I can't justify both purchases. Any additional thoughts at this point?