Why do you need to upgrade? Which features are you lacking in the N80?
Based on those questions you could find yourself which camera will suit your photography best.
Look at the BODY COMPARISON CHART for ideas.
Also check the compatibility issues of your lenses.
G lenses nee to be controlled from the camera body, so a F100 should be the next upgrade. But if you want a pro camera get an F5
PS. IIRC N90 predates N80
Originally Posted by Bighead