Update as promised:
We bought the camera and visor monitor from Visor-View.
My DH didn't like the monitor once we got it - much thicker than anticipated, and we couldn't figure out a way to 1) shim the monitor in the visor, once it was installed, and 2) prevent the visor from continually swinging down into our view due to the weight once installed.
So we returned the monitor, and kept the camera.
We're now in the process of installing a Gentex rear view mirror monitor, which will work with the camera we bought. It's this one (although not purchased from this site):
http://www.autoanything.com/mirrors/61A3727A0A0.aspx
We should be using it this coming weekend, so updates will follow.
Sandi