A follow up to my message of a couple of days ago. I got to thinking about the in-camera reflective meter and went outside today and took a number of images using: A) Internal D7000 reflective meter B) external Sekonic Studio Delux II incident meter
I found that when comparing the images I was over-exposed using the D7000 internal reflective meter by anywhere from 1/3 to 1 1/3 stops!
It could be just my camera, but I find the results interesting and not really too surprising given the differences between reflective and incident metering.
So, if you're going to shoot manually with your D7000 and depend on the internal meter - compare results with an incident meter (if you have access to one) and be ready to compensate for the difference.