Comparing NAV, NIS, N360

Hello,

 

When I purchased my new Vista computer a few months ago, I had a conversation with the salesman regarding the various Norton products. He said that Norton Internet Security provides better protection than Norton 360 against threats to one's computer.

 

I ultimately decided to buy N360 because it includes the "housekeeping" features that I had with System Works on my Windows 98 computer, where I also did use NIS.

 

But I'm still left with the question: What is the difference in protection between Norton AntiVirus, Norton Internet Security, and Norton 360? Which one should one buy for the greatest protection?

 

Thank you.

 

--JorgeA