My name is Ovidiu and I work for a local radio station in my city. After a some requests from our listeners, we decided that we should publish live stream from the studio to our website.

This is what I want:
For the server, I have a VPS runing CentOS, and for in the studio we have several PC`s runing Windows (XP/Vista/7).
I want to create the streaming server on my CentOS VPS, and stream live video from a webcam connected to a Windows running PC in the studio, and stream it over our website using a flash player.

My question is:
What software should I use? (looking for something free, like shoutcast is for audio)

I`ve found a lot of tutorials on the web but most of them are either for streaming from a linux based PC, or streaming for windows media player and real format.

Thanks in advance.