I find that sometimes my home wireless network drops out unexpectedly. Here's some pretty cool DIY instructions on building a 2.4 GHz spectrum analyzer to search for the right channels to put your home wireless network on so hopefully this won't happen.
DIY 2.4 GHZ Spectrum Anaylzer - [via], Link
http://blog.makezine.com/archive/2008/02/diy_spectrum_analyzer_cle.html