Five Systems, One Modem…

I would like to help a local church set up a very small network. The problem is that there is next to no budget. I have 4 older systems (Pentium 166’s) and one newer PII. The PII has a modem but none of the other computers have one. We would like toconnect all of them to the Internet through the PII. They will all be cabled together through a 10/100 hub. I thought that it might be possible to give the PII it’s own IP address, 10.0.0.1, and tell the other computers that 10.0.0.1 is the gateway to the Internet. Any Suggestions?