I have used norton 2009 for a few months now. Although I never paid for it as my sons copy has a licence for it to go onto three computers.
The thing I did not like about it is that it missed quite a few spyware and trojans. If I had relied on it on its own I would be knackered. I use other programs that did pick up on them.
Personaly I would not go for that security system again. I have just formated my system after a problem (not caused by nortons failure) and am pleased its gone now.