New computer, what security packages do I need?

I just bought a new computer and I wanted to know what software I should purchase? I do NOT want to buy any free programs, I had avast and spydoctor on my last computer and it became riddled with viruses. I am looking at Norton but I”m not sure if I need to install both Norton Anti virus and Norton 360, or do I need Norton 360 AND Internet security, or some combination of those??

Any help would be greatly appreciated.

Cyber Attacks on U.K., U.S. Exchanges Probed, Times Reports – Bloomberg

A terrorist plot and a cyber attack against the London Stock … the world’s largest maker of computer security software, said in a Nov. 12 study that the so-called Stuxnet virus may have been created to sabotage Iran.
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How do I get rid of the system security? Computer experts only!!?

I just had my computer fixed a few weeks ago and now whenever I try to use it this box pops up that says system security and it’ll scan my computer and says I have like 38 infections. The worse part is that it pops up every five minutes when I try to use my computer is there anyway that I can get rid of this system security and keep my computer safe i’m sick of spending alot of money every year Please Help!!!

Computer network security: The ‘trusted insider’ threat – Seacoast Online

Companies may implement a firewall to block outside traffic from getting in, along with an anti-virus program, limit network access … company information increases significantly. While attacks from external threats may be greater in volume, insider …
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