Some of the free tools available include RUBotted (Beta) from Trend Micro, BotHunter from SRI International, or try an online virus scan with the Windows Live OneCare safety scanner. For a primer on botnets, take a look at this short video from Symantec.Is Your PC Part of a Botnet? - ReadWriteWeb
[Flash 9 is required to listen to audio.]

I came across this old video about Skidboot the amazing Blue Heeler. It is still an inspiring story if you love dogs. Of course I cried when he died. Someday I want to go to Quinlan to meet the latest Blue Heeler prodigies.

Keeping up the the latest cultural conventions can be tricky. Enjoy