|You need software on the receive PC to receive streaming video from the web cam. You can do it with an IM application like Yahoo Messenger or Skype but that means going via the Internet.|
To do it within you own LAN you are going to need some specialist software.
I have deleted your Email address. The idea you ask a question, someone answers it and it is there for everyone to see. A web site with lots of questions and no answers would be useless.