Thanks for all of you're input. I originally had some concerns about the D200, but the responses have convinced me that both are good cameras. I thought about the D90 but could not get one to look at. So that eliminated it from consideration. As far as low light goes, my D5100 is very good in low light situations. I looked at both models and ended up with the D200. It is just short of being LN condition and at the time of purchase had fewer tham 3000 shutter actuations. Image quality may be slightly better than my D3000 was. I resized an image to 16x23.5 and printed a crop at that magnification. I am more than satisfied.