You are looking for the largest imaging chip (CMOS or CCD) area you can afford (1 big chip or 3 chips together). You should consider an external mic-jack - and add an external mic to your budget. And a tripod. And possibly an extra high-capacity battery.
While the 2007 models have been announced, they may not be listed here - but you can read about them at http://www.camcorderinfo.com - many of them are not yet available.
Pretty much all consumer camcorders are "easy to use, compatible with software for video editing and can be used is less than bright light."
What video editing application do you plan to use? Does your computer have a FireWire connection? Do you have a lot of available hard drive space? Does your computer have a DVD burner? Do not even think abut the DVD-based camcorders.
When "low light" capabilities are discussed - it is generally in terms of really low, dim, "murky" light. "Typical" indoor light - with some lights on or the curtains/blinds/shutters open during the day, does not normally fall into the category of "low light".