Nikon has posted the 40pg brochure for the D3. It includes some great images by Joe McNally & Dave Black, two mighty fine photographers!
In addition, you might want to check out this new little comprehensive D3 micro site Nikon has posted. You can see more images from the 3 photographers in the brochure and read a little bit behind their D3 shooting experience. There is also a lot of tech info available at this site.