I have a D2X and a D40, with the D2X you have to nail the exposure dead on for noise free images, even as low as ISO 200. Now i'm not talking about general noise but the ability to push and pull an image with shadow detail and highlight recovery. The D40 seems to be very happy with under exposure up to about ISO 800, and i know the D40's 6mp sensor has photosites not far off the D3's in size (though a much older sensor design). The D40 can be prone to some highlight clipping though. What do others find with the D3? Is it even close to the S5's ability?