Hi Bert,
that is so cool!
I did something not quite as advanced as your setup.
I put a small PCB cam in the dome and fed it into the TV
card.
http://mywebsite.bigpond.com/astrosteve/livewebcam.jpg
It uploads a pic to my webpage at whatever interval I choose
if I am online and have the freeware FTP loader prog going.
Great little piece of software called AT32 Comedy webcam.
You can title overlay the pic .
Been a while since I ran it though...the pic is from May 08
edit: new pic from this morning
Thanks for sharing!
Steve