For anyone that didn't know Microsft has released a *free* Anti-Virus, Anti-Spyware/Malware application that you can stick on all of your home machines.

I am running it on all of mine at home, and it works great. The best kind of AV product is one you don't know is there....until you need it.

 http://www.microsoft.com/security_essentials/

 Check it out.

 -Jason