How to Boost Cell Phone Reception with an External Antenna

My house is a cell phone dead zone. Particularly my basement office, which munges most conversations and renders Cingular’s BroadbandConnect service nearly useless. The only solution I can think might work is an external cell phone antenna to boost signal strength. I hesitate to purchase one of those external car antennas, because I’ve never found them truly useful. Graeme at Earth: Mostly Harmless offers a compelling alternative by boosting his cell phone signal strength with a modified WiFi antenna, taking his house from cell phone dead zone to functional. I have tons of WiFi gear laying around; this just might do the trick.
car antennas, cell phone antenna, signal strength