Nest Cameras

Swann SWPRO-780CAM-US Pro-780 Ultimate Optical Zoom Camera (White) (Not installed as of 2/2014)

600 TVL 90' IR Varifocal Outdoor  Dome Camera (mid level camera) Seems heat sensitive (Black Enclosure)
Lots of versions starting at about $50 on amazon (Used in widest setting)

Swann SWPRO-642CAM (egg view) Fixed focal length (has night issues, that maybe we can fix this summer) (not super wide)

Overhead cameras are indoor only.  They are mounted in an enclosure.

The porch camera is a standard Sony Handi-cam. About 10 years old.  Google sony handycam 25x optical