Anti-Virus Software

Antivirus Software, What do you think is the best, My mum is convinced Norton is the best by far but reveiws seem to think different, see she works in pcworld and has been told this by her coworkers and as everyone knows salesmen and technicians in pc shops know fuck all about computers really, so i turn to you, you lot know your shit please guide me. Also im not interested in the price i just want the best you see, i would rather pay £60 for decent software than get some "not so decent software" for free

POSTED IN /G/ BUT REALISED THIS IS A KINDA SUPPORT THREAD.

Beleive me man im more than capable of running my computer without antivirus, my computer upstairs has never had a virus, this computer has but only because other people (noobs) use it aswell. its just my mum being paranoid. she thinks when you hit connect you get a virus as soon as you connect to the net.