Cheap security
Wired News: Cheapskate's Guide to a Safe PC:
"If you're wondering what lunacy your computer might contain but aren't in the mood to fork over a few hundred bucks for software that can examine and secure your system, fret not. There are plenty of free tools available for download that do a good basic job of purging and protecting computer systems. And some of these tools, such as SpamBayes, Spybot and the Mozilla Web browser, work better than similar commercial products."
He forgot Linux or FreeBSD on that list.