If it's just a small network of computer that you want them to have access to the internet, well just go buy a Linksys Router, i have 2 of those and they work fairly well. with one router you can plug up to 254 computers on it. Easy to configure and it's a cheap router, around $80.
All you need to do is plug more Hub if you want more then 4 computers on your computer, you need to get some Cross Over Cat 5 cables to connect from router to hub, and straigh cables from router or hub to computers.
I think that is what you want to know...
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Marc
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