Comment A better solution (Score 2, Informative) 110
After trying and sending back the X10 crap (CMOS is not the way to go) I found an inexpensive solution that I've been using for over a year now. Geovision makes an excellent system that comes bundled with a DVR card for the PC (*nix too). I'm running 2 - 3/4" weather-proof wired bullet cams (Sony 1/3 CCD's high res, low lux) connected to a 2 port card (up to 16 port avail). The software is solid and has wayyyy more features than I need. 24x7x365 monitoring, MPEG's captured to an HD on motion detect, remote access, playback, web, security, 30 day retention of files (configurable), alarms, PTZ support, audio, yada, yada, yada. Amazing what goes on in my hood when I'm at work! :) Cams, card, and software was under $300 USD. Just add PC and away you go! Tin foil hat and side arm not included.