I'm a member of Technibble.com which is a forum for computer repair company owners. I joined it when I used to own a computer repair company.
This page, malware removal guide is a great resource to help you get your system "clean" after an infection.
This guy has put a lot of work into the page and it shows. He also has several tabbed links for other resources including security topics.
If you find your computer has been infected, check this page out.