VPN Internet connection, home-pc networking help issue.

Okay, so heres the deal. My internet connection works like this. Plug in a network cable, then connect to the VPN connection. I need one way of connecting in one room and I also want to make a home theatre PC with internet on it.
so I have the following
3-4 Laptops, and 2 Desktops which could be used. What would be the most space saving, cable saving, cost effective way to do this?
Please post any questions, I will upload a picture with more detail to help :-).