Mega pixels generally refer to still photography...........................if your talking about resolution, you will want a camera with at least 480 lines or higher (higher is better).........finding a low light camera for the money you have to spend is going to be next to impossible, most consumer cameras are in the 5-7 lux range which is not going to get you very good low light video. If you want good low light you will need to step up to the next level camera, pro-sumer........expect to spend anywhere from 1200-2500 for a good pro-sumer camera and look for a lux rating of 3 or less.