The consensus is probably that you won't find a consensus. I use Norton Internet Security for both my anti-virus and firewall software. I've never had a problem and NIS serves me well. Others seem to have bad luck and don't like Norton. I see many people recommend AVG and others, and I note that AVG seems to get pretty good reviews as well. ZoneAlarm is a great little firewall. personally, I say pick something, just about anything is better than nothing as far as AV software goes. Just keep it updated.
\Dan