Thanks, August! I have the D3X now but was considering getting the D4 because the low light capabilities are better than the D3X, but maybe I don't need it after all. I recently took a picture of a family for their Christmas card in very poor light. I had my ISO set at 1600. It would have been fine had they only needed 4x6's, but the lady informed me they always get a 16X20 done, too. Oops, but when you factor the noise and camera shake in, I don't think that's going to happen. I would have used a tripod to at least stop the camera shake had I know.
Anyway, thanks for the info!
Lee Anne "The human race has only one really effective weapon and that is laughter." Mark Twain