<p>I love shooting video with my D7000, but something like dance in a theater, a dslr is going to be seriously over-matched, IMHO.<br>
Been shooting dance for $ since the days of tube cameras/vhs porta-pack recorders. I curently run a Sony EX3 with a Canon 18x lens for my follow shot and a Sony EX1 for my wide set shot. I run both cameras into a Panasonic HMX-100 sdi HD switcher real time, and record on a Panasonic HMR-10 sd card recorder. Just started using a Zoom H5 recorder as an audio mixer (feels like cheating, but it's sweeeeet).<br>
I put a cardioid hand mic with a Sennheiser snap-on transmitter laid right on the stage to pick up the taps and any yips and yaps from the dancers.<br>
I get a line-out from the house for the music, arranged for with the sound guy days before.<br>
I run a cardioid on top of the EX1 for applause and a plan B, if things go seriously South. And yes, it all goes into the H5, and I output from the aux out to the Panny switcher. Was using a Mackie 804, but the H5 fits in my dang pocket!<br>
BUT all this is really heavy and expensive, and YOU could nicely fit a used, low-hours EX1, sourced from Ebay, for under $2k, learn how to program it through googling, get a GOOD tripod made for video, and put a Sony as 200 action cam right next to the stage and get a cool angle for adding in post. Or not. Single-cam works well if you do it right; you're always following the dancers, making sure they're all always in frame, and your frame only as wide as it needs to be. The EX1 has a friendly lens, and you'd still have money for a Vari-zoom back zoom control. You'll also want an MxM sd card adaptor and some fast, big-a$$ sd cards as Sony's SxS card media is still, uh, not cheap. But be warned: Sony EXs record an MXF file type, and not all editors can use it.<br>
And learn how to white-balance manually. Stage/theater lighting can go as low 2,000K, and now upwards of 7,000K if they're using leds, and sometimes in the course of the same flippin' show...</p>