My daughter has a huge interest in photography so I got her the Nikon D60 for xmas. Now, she has enrolled in a photograph class and they want her to go back to basics and get a 35mm camera. She mentioned the Nikon N80, but I found a good deal on a Nikon N90. Is the N90 better than the N80? And, can she use her lens from the D60 on either the N80 or N90? She has the 18/55mm lens. Thanks for any info.