Therefore my plan is to build a portable light source for the camera. Typical video camera lighting systems start at over $100 for a 10watt halogen system, so I figured it would be more fun to build my own using multiple 3watt luxeon white LEDs from SparkFun (they also have some nice heatsinks for these nasty little critters).
Here's some video of the first test runs, which are very encouraging. I soldered up 8 3watt LEDs to heatsinks, put them on a styrofoam ring, and wired them up in parallel to 3 1.2v NiMH cells (so I'm actually undervolting them a bit). You have to use NiMH or NiCd for this kind of application because non-rechargable cells just can't source the current needed - probably 5 or 6 amps total.