Well, i really think you should stick with ESET SS since right now, it was voted the best security on the net on tons of sites. But if you are just looking for firewalls, dont bother on AntiViruse, they are a waste of time. Just go here, VirusTotal - Free Online Virus and Malware Scan

This is best AV you can have, they scan files with 32 Antivirus programs.
Good luck.