I'll second the recommendation of the Panasonic BL-C10A - I've got two of them, and they work great. While theyre not touted as low-light cameras, the one overlooking my front yard gives perfectly viewable images in the middle of the night, with just the light from a nearby streetlight.
My wife can check from work whether I've cleared the snow out of the driveway yet, and if I'm in the back of the house and hear a truck out front, I can whip my Nokia 770 web tablet out of my pocket and see if it's UPS delivering the latest goodie.
- Dennis Brothers