I think you have it covered my friend.Changes, changes, changes...
Why ?, because I've got a license of Norton AV 2014 for 6 months, and I like Norton, It was for me a revelation, did not use it for many, many years ago .
Now my first line of defense consists of Norton AV 2014, Crystal Security and Windows Firewall.
I've always liked firewalls like Comodo, ZoneAlarm ... but I think I'm very well protected. What do you think?