I have the following installed in my PC. Zone Alarm firewallAd-Aware SE PersonalSpybot - Search & DestroySpywareBlasterAvast AntivirusNote, all the above are freeware versions.I do regular checks and scanning from all the above. So, far i have not got any spywares or adwares or even viruses of that sort found by these utilities except on very few occasions. I also do regular updates on all the above. Now, I have a fear whether since these are freeware, i doubt whether this is enough to protect my PC from the ever luring viruses, trojans, spywares, adwares, and key loggers, etc, etc.I want to know whether this is more than enough to protect my PC or can anyone suggest alternatives (free would be better). BTW, I have broadband connection which is on most of the time.