Short answer: There is no such thing.
Long answer: It really depends on your preferences and requirements, but I’ll attempt to compile some of the setups shared by Nikon D200 photographers.
Anthony likes sRGB Mode III, Medium High Sharpening, Normal Tone and Saturation. Enhanced Saturation makes skin tones look too red, so he stopped using it. These work great for him in a studio setting with monolights.
For the two outdoor portraits below (larger images here), Nik1024 decided to set ISO100, f3.2, 1/320 sec, sRGB mode III on the Nikon D200.
Lens used was the Nikkor 70-200mm f/2.8 VR.
Next, we have David Gazzotti attempting to match the skin tones in images from the D200 to those produced by the Fuji S2 Pro.
View a larger version of the images and read about the settings used (Automatic White Balance, Tone: Normal, Color Mode: I, Saturation: Normal, Hue: +9 (adds yellow), ColorSpace: sRGB, popup flash compensation +1EV, Sharpening: +1).
He also shows crops from the images to compare Nikon D200 vs Fuji S2 Pro sharpness and details. With these settings, the D200 produces beautiful Caucasian skin tones like the Fuji S2, but without the green / yellow cast.
Lens used was the Nikkor 35-70mm f/2.8D AF.
Nikon D200 Tips & Tricks — Main page.