However it was this Arstechnica article that elevated MSE enough in my mind and started me on the road to this decision. Basically a new attack vector was concocted in the wild that bypasses practically all antivirus software, except for MSE:
Given that Microsoft Security Essentials has better detection of malware than AVG (according to the information presented by Lifehacker, which I trust), fewer false positives, is not vulnerable to kernel hook attacks and last but not least is FREE, I was sold.
MSE is available for Windows XP, Windows Vista and Windows 7.
I'm an Information Technology professional that enjoys evangelizing creative solutions to problems for businesses and/or consumers. I currently reside in Seattle and work as a Systems Engineer. All opinions expressed here are solely my own.