Join Date: Jun 2009
Location: British Columbia, Canada
The D90 overall is a better camera than the D5000. However, if you are an amateur photographer who's just getting into photography, the D5000 is an excellent camera for an excellent price. If you have the extra couple hundred dollars to spend on the D90, I'd go for it but certainly don't break the bank just to a get a better camera, when the D5000 is able to take you pretty far.
Nikons in general are good, user-friendly cameras. I prefer my Canons, but that's just personal preference!