Sounds good. I might look into it, and rent one for a while to try it out before we buy.I would focus on getting a good low light performer, you can always get a neutral density filter to put on the front of the lens. Doing this you can effectively loose 1-4 stops of light, or more if you stack filters. Do be warned though that stacking filters can cause vignetting, or darker corners.
In my experience Canon's XL1 did a good job in low light, so I imagine the XL2 would as well. These cameras have a lens with a neutral density filter in it already. Turn it on when you're outside in the sun.
Exactly my situation now... Except for no current good video camera.