New
#11
All products have there benefits and downfalls no AV is perfect..
I would do some research on your part for the many types of AVs and find one that best suites you.
My suggestion (since you asked) is you already have Norton so keep it. Norton is great and I have had no issues with it. You can probably get a good deal at these times.
But if you want to Go the free route, I would recommend Microsoft Security Essentials (MSE) and Malwarebytes both are free and use the built-in Windows 7 Firewall.
Hope this Helps,
Ryan