I moved up from the D80 to the D7000 about a year ago now and like torwood said, you will never look back. I have the exact same lenses you have and have to say that the IQ is great from either one. I've included some of my better shots using these. With the D7000 you will encounter some focus issues, not faults, and will have to learn how to work with them. I did send mine in for Autofocus adjustment and its fine now.