Glenn "802.11b Networking News" Fleishmann and Adam "TidBITS" Engst have written a book on setting up a home wireless network, called "The Wireless Networking Starter Kit." The book runs down the cross-platform, step-by-step instructions for setting up and running a WiFi network from scratch.
Table of contents
1 Why Wireless?
2 Networking Basics
3 How Wireless Works
4 Connecting Your Computer
5 Building Your Wireless Network
6 Wireless Security
7 Taking It on the Road
8 Going the Distance
9 Things That Go Bump in the Net
10 The Future of Wireless