When Security Essentials first came out, I refused to use it. I called it "Enron-ing my PC". But after I read several reviews, and getting fed up with annoyances of Avast, I tried it out. Great product. Highly recommended.

>I use AVG and trust it but suspect it is a resource hog as well. The one I keep hearing good things about, to my surprise, is MS Security Essentials. It's sort of an article of faith to trash Microsoft software.