I've been using Avira Antivir Personal for over 2 years and had some great results. Prior to Avira I had used AVG and Nortons, after installing Avira it detected viruses (virii?) and suspicious files that the other two had not. Version 8 updates and scans fairly quickly.
are you sure with search-and-destroy? from some search, the result isn't pretty SearchAndDestroy - Symantec.com Search-and-Destroy - F-Secure Weblog : News from the Lab Norton Safe Web, from Symantec - report for search-and-destroy.com Re-read the post: why would you want to stop anti virus