It's Thursday evening. Now, you're a progressive fellow. This situation requires you to become a little more familiarized with Networking if you don't want a civil war in your house. Share the connection to all your computers.
Lets start at the beginning.
Connecting everything is a breeze- twisted pair cables snap in just like big phone plugs. Connect each computer to the hub and away you go. The next step is to get the routing software. The problem facing your network is that each computer must have a unique IP address- but your ISP only gives you one. Therefore, the routing software will act as the arbiter between your external IP connection to the internet and the internal clients, or the different machines attempting to gain access.