If you own a NIKON D7000, chances are you should sit tight. As CNET states, "The D600 is essentially the D7000 with a full-frame sensor and some more modern video capabilities."
I used video with the NIKON D90, once. I have never used video with the D7000.
The full CNET Review:
http://reviews.cnet.com/digital-came...-35446299.html