Answer
This question was answered on April 5, 2006.
Much of the information contained herein may have changed since posting.
Either program will offer protection against spam and pop ups. So there is no wrong answer to which company to use. Symantec, the maker of the Norton line of products, has been a reliable company for a long time and they make easy to use products. Cox is a reliable company for internet access but the only issue you may want to consider is whether their free software would work should you decide to change providers. You may want to contact Cox customer service if that ever becomes an issue. If it were me, I'd say spend the extra money and go with the company (Symantec) that has been in the computer security business all along.