Home Network for 30+ computers

Hey,
I have a problem im setting out to fix and any advice I could get would be greatly appreciated.

I’m currently a student in University, and Im trying to restructure the network for my fraternity’s house, because its absolutly terrible right now, creeps along slowly, even with a very good broadband connection.

what we need is a reliable, quick internet connection, no more. There will be about 23-29 computers wired in and a passworded wifi network.

So basically what im asking for is does anyone ahve a few links to some good articles that would outline what course of action we might take to meet our needs? or pwerhaps suggestions of what hardware we should start with?

thx alot!