Check out some Raw images from the D600. They look absolutely incredible....

All that seems to have been done was "sharpening at an intensity of 60-100, a radius of 1.0-1.5, and detail set to 15-25. Noise reduction ranges from 20-50, depending on the ISO"

Source: http://www.slrlounge.com/nikon-d600-...-lightroom-4-2