Nortons internet sucurity,but do I need a spyware as well?

I'm currently using Nortons internet security 2012 so do I need a spyware software to protect my computer? If so,what does nortons recommend as a compatible with norton?

 

If not,I would just like to know.

 

I have used spybot and superantispyware,these seem to be compatible.

 

Thanks in advance.