Norton sucks big time unless you spend the time to configure it properly. NOD32 is by far the best on the market and is very user friendly.
For antivirus programs I use three all configured diffently. I use Nod32(must pay no getting around that), Zone Alarm (paid version, very aggressive and is very similiar to Norton) and, AVG free editon (can’t lose on this one). Configuring them all to operate as one unit was a bit tricky as too not crash your PC.
But there is a fine line between between viruses and spyware. For spyware I run, Xoftspy, ad-ware se personal and spybot search and destroy. Each provide a different level of security.
For attacks I mostly rely on Zone Alarm and kaspersky Anti Hacking. Kaspersky is very good for repulsing attacks, also it will log the origin of the attack.
Also some common sense goes along way. I never have anything set to automatically update. This also includes MS OS auto updates these thing should be done manually.
In a nutshell dump Norton and use AVG free edtion with the spyware programs I have already mentioned. For port attacks I would go with Kaspersky Anti Hacking (they have a trial editon).
greek39