dont think norton stuffs all that popular personaly..tends to hog the system resources alot..
atm i have ZA
but have used norton internet security 2002 & 2003 with the NAV and the NAV corporate version..and with system works..
but things are ok with zone alarm...
i also use
protowall
panda antivirus(wich speaks to me in spanish )
ad-aware
zero spyware
spybot
spy sweeper
keylogger killer
port detective
windows washer
and
system mechanic
(beats sytem works..imo)
dont know about running 2 firewalls tho..you must be insane paranoid ..lol