I've been virus free for a long time now. Although my modem had the DNS changed a few years ago.
But all this has made me think about security. I've always run AVG free. But I'm currently running Kaspersky total security. Free 30 day trial. (bank with barclays so could also get a big discount) on a scale of 1-100 how paranoid am I being that its run by a Russian...
Things like Kaspersky are under huge scrutiny by independent security researchers who'd love nothing better than to find some problem with it - that said something that has the ability to execute code on your PC and update at will could always be used for malicious ends in the future if the company went bad or was playing a long game or something, etc.