oreilly.com -- Online Catalog: Wireless Hacking Just a few of the things you'll learn from this book...

* Use existing Ethernet cables to provide low-voltage power to Access Points with no additional source of electricity. * Install Linux and FreeBSD on low-cost (under $150) Soekris single-board computers. * Modify the firmware of your Linksys WRT54g. * Construct Solar Powered Access Points and Repeaters for your Wi-Fi network. * WarDrive for wireless access points with tools like Kismet and NetStumbler. * Install an antenna without killing yourself or changing the earth's orbit. * Expand your Wi-Fi network beyond one box and 50 users with MESH network topology.

I'm really interested in learning how to do the first one...