I thought, based on that recommendation, that I'd try F-secure. I downloaded all 50-something MB of the trial version.
It then told me I had to REMOVE my firewall (ZoneAlarm) - not just give it permission to access the Internet through ZA.
Blow that! ZoneAlarm has stopped enough nasties in its time that it stays.
End of test, before we even got to try it.
I'm still happy with AVG - it coexists with ZA and does a fine job of stopping nasties.