AVG 7.1.371 Free Edition for Anti Virus protection. (only had 3 tame viruses over 2 years)

Spybot and Ad Aware for spyware removal.

Windows Firewall and router firewall for connection security.

I don't see the point of paying for premium services when they provide nothing more than the free services in reality. Also browsing habits account for a lot of security breaches, don't go to porn sites, hacking sites, don't open e-mail attachments, don't randomly give out your e-mail address...etc...