The D7000 is quite a step up for me. My previous Nikons have tended to be the low end versions albeit pretty damn good. This is semi-pro ground and feels it. There’s a huge step up in build quality and the number of available menu options is massive! I shudder to think what the options would be like on a D4. Anyway quite a formidable camera.
I have been given a third party battery pack which extends the battery performance and endurance. The D7000 is no longer in production.