Top paid antiviral sotware for 2010 by AV-test.org is as fallows:
1. G Data AntiVirus 2010
2. Symantec Norton AntiVirus 2010
3. Kaspersky Anti-Virus 2010
4. BitDefender Antivirus 2010
5. Panda Antivirus Pro 2010
All though in their website says that based on their results they found that almost all the programs were fully capable of detecting malware with known signatures, the only thing to sort out would be their ability to detect unknown virus programs malware and Trojans amongst others witch I solved by simply getting the virus focus program Avira and a malware oriented program like malwarebytes also you could protect yourself further by avoiding porn sites and some downloading sites that contain malicious scripts and Peer to Peer programs like limewire and others also by getting a web browsing tool like the one I'm using called Wot for safe browsing WOT is a plug-in for Mozilla firefox that warns you about risky sites that cheat customers, deliver malware or send spam, giving you an extra layer of protection when browsing or searching the Web.
so if you don't want to pay top dollar for securing your self try these:
Avira free
Malwarebytes free