God I lol'd....
TBH Norton aint as bad as it used to be but it's still a poor heefer of a program.
Personally I've been using Kaspersky Internet Security and windows firwall (win 7 64bit) for a long time now. (win vista/xp previous to that) without any issues at all.
But whatever AV program you go with the best security you're going to find is yourself.
Dont click obvius junk mail, pop-ups, anything proomising an easy one click fix for 'problems' that are supposedly on your system etc etc.
Internet 'savvy' is the No1 security product at the end of the day.
And as Lothdk has said, Microsoft security essentials is surprisingly good, either way stick to 1 Av program and maybe 1 malware program if you feel it is needed. I would reccomend Malware bytes which is free or you can get the paid version but niether is essential.