Don use any anti-virus they are themselves a virus. :diablo:
anyways u can try Quickheal damn good.I have used it for 3 months.
Quickheal Protection
Then there is AVG/Avast however AVG has issues with some firewalls and sometimes fails to perform.
I’d recommend a mix of quickheal/Ad Aware/Anti-spyware/Zonealarm for a home pc user.
If you want to know more you can check article written by me on security for home users.
Online Security For Home Users