Update:
I found a cheaper solution than the axis video servers I posted.
http://www.stardot-tech.com has a video server with six analog inputs for around $700. This is sufficient for all the security cameras I have around the house. I have one on order from CDW and will post the results when I receive it.
The Network Cameras they have on their site worked extremely well through the iPronto when I went to the demo last night.
The Express 6 demo didn't work as well through the iPronto I hope because of the settings. They are feeding a much higher frame rate than the Network Camera demo.
Clay