Here is a link to a thread about setting up a webcam.
http://www.winnipesaukee.com/forums/...read.php?t=380
I think the best webcam available now is the Stardot Mega Pixel. It's expensive but has a great picture. The cheapest way is a serial or USB camera and an old computer running webcam software.
http://www.stardot-tech.com/netcam/index.html