I have used Symantec products for many years and have rarely been disappointed. I have tried other products, but I keep coming back to the Symantec line of products.
They just do the job with less intrusion.
Norton Internet Security is the best security software out there, but the digital downloads are expensive. I can usually get it on disc for a discount. I paid half the price of a download. Let it expire before you renew. You paid for a full year of protection! Don't renew early or you're being ripped off.