McAfee Internet Security Suite 2005 is by far the most user friendly internet security package and beats all the competition hands down.
'Norton' are only just introducing features that McAfee has had for years.
Heuristic solutions being just one example.
Basically it does 5 very important jobs.
Prevents viruses from infecting your PC.
Prevents hackers from invading your PC.
Prevents unwanted and inappropriate email.
Prevents spying and pop-up ad programmes.
Prevents identity theft.
It also reports automatically to 'Hacker Watchdog' all suspicious activity on your PC but it does not 'take over' It simply 'blends in' with everything including the operating system, your programmes and your Email.
You can fully customise it or just take it out of the box, load it and use it.
You have complete control over what it does and which programmes you allow to access the internet. It does however offer advice and recommendations before you allow internet access.
I have used McAfee for 4 years and recommend then to anyone.