So im looking to buy a new camera cause the one I have now isn't working to well. Its between the Nikon D5000 and Nikon D90 I don't know which one would be better. Also whats your opinion on Nikons are they good?? The camera I have now is a cannon.
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!