Zone Alarm Suite

I find this program using a lot of computer rescources.Are the free programs any good.I usually go to safe sites only?

 

"Are the free programs any good."
MORE than GOOD!!
Take for ex.-Comodo Firewall.This is the best free firewall in the world.Look at this leak test:http://www.matousec.com/projects/firewall-challenge/results.php
He beat the c##p out of the most expensive firewalls today.
DL from here:http://www.majorgeeks.com/Comodo_Personal_Firewall_d5033.html
For Antivirus,Avast:http://www.majorgeeks.com/Avast_Home_Edition_d1968.html
For real-time malware protection:http://www.majorgeeks.com/Comodo_BOClean_Anti-Malware_d5616.html
All this 3 app's in my comp use about 55mb.

 

Thank you for your advice