here's my tuppence worth, i have had norton security in the past and would Not recommend it to anyone, takes over the pc, far too bulky and eats the memory, not very good at the job its renowned for either in my opinion.
have used mcafee firewall in the past and was not impressed with that either.
the general opinion on most forums is that nod32 and kapersky are two of the best anti-virus out there, so may be a good idea to stick with your kapersky, though i've not used it myself.
i agree that those test-labs are a good indication of what software is good to use and its there where i first had good reports for ''Avira'', and have used it ever since.
i disagree that security suites are a bad idea, having tried various different firewalls and anti-virus software over the years, a few months back i decided i liked Avira anti-virus so much i would try the security suite, and i am very pleased with it, not too bulky, doesn't use up too much computer recourses, just very quietly goes about its job which i think its very good at. judging by those test-labs no one product will ever give you 100% protection, but i believe this is about as close at you can get.
Anti virus for Linux, Windows and more with firewall, antispam, recovery security - Avira AntiVir (a free anti-virus is available here)
other software i use=
webroot spy sweeper
Tune-up utilities 2009
TUT (the ultimate troubleshooter)
windows defender.
for added security i would suggest always using ''Firefox'' as your browser and getting the free add-ons ''no-script'' ''ad-aware'' and ''keyscrambler'' which install within it.
i am a heavy user, most days spending hours surfing, so far (touch wood) using the software listed has kept me safe.
magoo.