I have a few wired network cameras (Hawking HNC-210) about my building, and wanted to keep an eye on them, but not require 'live' video.
This puts a JPEG still capture on my desktop. The geeklet is a simple Image geeklet, but it calls on the included CGI file that queries the network camera, and turns the result into a JPEG file.
You'll need to rename the 'camera_cgi.txt' file to 'camera.cgi' after you download it.