As far as video goes, I have used the program offered by this website
Yawcam - Yet Another Webcam Software
It seems to work well. The jist of it is... you connect your webcam/camcorder to your computer, then you choose stream (or at least thats what I did for my naked webcam shows) and you give people whatever url it gives you.
I fucked around with this program for a bit and figured out that I can actually connect it to my tv tuner and I can broadcast the video from whatever channels I have available. But yeah.. I dont know. This will take some serious organization to get every one on audio and video. I personally think audio needs to be our first priority. Video would be a huge bonus, but I'm sure we'll take what we can get.