Camera Monitoring Advice needed

I want to watch cctv cameras that are installed in various locations in Cape Town. They are connected to computers that are linked to the Internet via adsl connections. The connection is supplied by Unilynx.

The cameras send their images to a computer that has a static IP on the monitoring end, i.e in my office.

I assume that alll this traffic is local-only. I am using about 30 gigs per month to transfer the images from the cameras to my monitoring station in Cape Town.

Here's the question: What is the momst cost-effective way of getting the information from the cameras to my office? At present I use M-Web, but I think I am being milked.

Here's a list of Wireless User groups in the country:
http://www.wug.za.net/currentwugs.php

I don't know which one you should contact, there are 4 in "Cape Town".

Anyways, it may just be within their mandate to help you out, one way or another.
We really should not be paying per bit for transferring data over our own freaking infrastructure.

Use the Axis bandwidth calculator to calculate how much bandwidth you will utilise
http://www.axis.com/products/video/design_tool/calculator.htm

plazma - Does each camera have its own DVR and the office connects to each CCTV & DVR to in
monitor realtime/recordings.

You can purchase a Webafrica local 10 Gb account for R70 per camera