If this is a serious request ... a videochat script that can handle multiple schedules, galleries, multiple chats and video thru-put, realtime counting, hundreds of performers, etc ... then I have a $5K script for you that's easily worth twice that amount. Which is exactly what a webcam portal requires.
Interested? hit me up at dravyk at allofem dot com for details. Put webcam script or something in the subject line so it doesn't accidently go out with the spam.
... I have the funny feeling though the reply is going to be "naw, I was looking for a free script" ... but one never knows. 