I was curious to find out which anti-virus/firewall programs people liked and used.

Over time I have tried a couple of different programs, and never been extremeley happy with them for various reasons.

I used Symantec/Norton for a while, and it had a tendency to crash my machine every time an update came out, requiring reverification with the company, unloading/reloading the program, etc.

At the moment I am using the McAfee Security Center Suite, and while it works reasonably well, it manages to chew up about 137MB of RAM according to the Processes window in the Task Manager. For a system that has a typical resting usage of about 350 to 400MB that seems like an awful lot to me.

A friend of mine recommended switching to the Grisoft AVG antivirus/firewall, which he said uses far less memory and catches quite a bit more than McAfee. I downloaded a free version and ran it once. It managed to detect three Trojans which McAfee had missed over months of use.

So the question is, for those of us who are just competent enough to unwittingly destroy our machines, but not so competent that we can delve into the minutiae of these programs, what would your recommendation be?

Ideally this would be a single source of programs designed to work together (the biggest selling point for the McAfee suite in my case), not a multi-sourced collection that may or may not work together depending on my ability to dig in and tweak drivers/settings/codes.

I await the collective wisdom with anticipation.