Overclock and Seriously Amplify a Linksys Wi-Fi Router
The WRT54GL is a hacker's dream Wi-Fi router, capable of running third-party firmware and upping its signal power internally. A brave Instructables user shows how to go whole-hog on the blue box with extended antennas, fan-cooled overclocking, and the DD-WRT interface.
Instructable author NostalgicStone offers plenty of warnings before jumping into the details of his hack, and for good reason: it's not the safest way to run a Wi-Fi router. It's also not a pretty sight to have a PC fan running on top of a router, if you have to keep it in plain view. With all that said, this total upgrade is really appealing to those of us who lack Wi-Fi in particular corners of the house, don't have to worry about how pretty the router looks, and don't mind tearing open electronics to do things like install heatsinks.