[quote name='Thongsy']I use Macfee, mainly because it's free with Comcast. Otherwise I probably wouldn't use any, or maybe that AVG one. I haven't got a virus in years, and I only got them before only because I was a idiot and downloaded anything and everything and didn't really know much about how the internet was.[/quote]
Even if you do not have constant scanning on, it's recommended to have A/V ap on your computer just as a precaution. It's better to have a contigency plan and be prepared than to have a virus and not have anything at all. personally I would use Nod32 or Kaspersky with F-secure coming in third.