I asked a friend of mine who is an independent film maker - he shot the Alison Lapper documentary series for (I think) CH4. He's currently using a Panasonic GF2, I think. Which is by no means an extravagant investment. But having all the lenses for Nikon already, it may make more sense to 'stay in the fold'. Might still persevere with the wife's p&s JVC HD camcorder though....it does have a few overrides for exposure etc, though these are buried deep in menus.
The D7000 is kind of in my sights, although while researching cameras for a student, I also discovered the D5100, which seems like a bargain, considering its capabilities. Am I wrong?