I totally agree with Leo here about wanting to buy a new computer when it is badly infected.  I like his comparison to moldy bread and the toaster.

Read for yourself in this article.  If you are infected you can always bring it to Oasis Computers http://oasis-computers.net/ and get it cleaned.

http://techtalk.pcpitstop.com/2010/11/19/ask-leo-massive-malware-infection-time-for-a-new-machine/