I've made a few all-sky cams now.
See:
http://www.atscope.com.au/BRO/AllSkyMod/Allsky.html
The STi has been replaced by a Ponit Grey Cricket IP camera. It gets power over an Ethernet cable and runs under VLC freeware.
It updates images via an auto ftp script every three minutes to here
http://www.atscope.com.au/BRO/SkyCam/SkyCam.html