the D7000 has 2 user defined modes, its ISO goes from 100-6400 and expanded is 12,800 and 25,600. also you can get a really good set of lenses for both the 90 and 7000. anything that is af af-d or af-s will work perfectly. so you could get the 20-35mm 2.8 af-d the 35-70mm 2.8 af-d and the 70-210mm 4-5.6 or the 80-200mm 2.8 af-d. oh another big push for the 7000 is not only the dedicated buttons for live view and recording but also the 1080p 24 fps and the 720p in both 24 and 30 fps and the continuous af during filming. you are getting a lot more camera in the 7000 than the 90. I would say if you dont mind using some older glass and saving a bit more money i would get the 7000. also i wasnt using mp to judge a camera just stating it as a fact that the 7000 has more than the 300s and 90. but how much sharpness did you lose with that print you made?