It's been a long time since I ran one of those, but many of the independant web girls who are not part of HGC or Spamz do it this way.
http://www.webcam32.com/
Just build it so that the irc chat channel is beside the video window. You'll need to get ahold of a chat channel, but it was never a problem in the past. I'm not up to date on how it all works anymore