At one time, I thought about doing my own site for "home user" network security. Nice to see my buddies over at The Academy doing it with The Academy Home. While the site is relatively new, they do have a few how-to videos available already, including installing a program I recommend wholeheartedly: K9 Web Protection from Blue Coat Systems.
I'd like to see some stuff on configuring Windows XP with non-admin users for your kids. I have to do this for my friends all the time. That right there makes it more difficult for a piece of malware that does get in to do any damage.