The video quality with the D7000 is excellent. The day after I bought my D7000 (the first day it was in Best Buy), I was shooting video for television with it.
Shooting good video with any DSLR requires extra care, and probably extra gear, but the image quality is great, and the shallow depth of field gives it a cinema look.
Note that audio is a big problem, and most people shooting video seriously with DSLRs record audio to a separate digital audio recorder.