I discovered a couple of things to be careful of with the d700. Certain popular folks on the Internet claim crazy colors with the d700 in vivid more. For the most part this is true. But for stock photography Everything has to be sharp at 100%. We all learn tricks to keep it sharp for stock like using unsharp mask, shrinking the image size (who says megapixels don’t matter), etc…
The d700 (and I’d expect, the d3 too) has a problem that when you put it into vivid mode with too much saturation you start to lose details. It is similar to blowing the highlights, but in this case you are blowing the colors. It is ok as long as you realize it and make sure you get the vivid mode off or less saturated when you start to take photos of very colorful things.
And people….don’t shoot people on vivid. They end up looking sunburned.