I sold my canon point and shoot video camera (I am more of a still photographer than video) but am intrigued by the new video capabilities of D3100 and D7000. After selling a little more equipment, I will be able to afford both cameras. The question is, which one should I get. I own a D3 and want a backup body as well as a fairly decent video capability. I like the D3100 because it is small, but the D7000 does not seem that much bigger. I like the D7000's stereo audio capability and the fact that it can use older autofocus lenses (my brother-in-law) has a D90 and an older 50mm 1.4 (the D3100 will not autofocus with it). The D3100 is a compelling product at the price with a kit lens, but is the video that much different than the D7000? Does the sensor difference have that much of an impact on the video quality? Is the autofocus that much better in video mode on the D7000 than the D3100? I know that the D7000 has not come out, but some of the more technologically savvy Nikonians out there please help! Thanks in advance! Ed.