I have never been satisfied with Norton or McAfee but if you decide to change I use "Norman Virus Control" over our enterprise as well as on our SMTP gateway. One of the best features is the ability to create a virtual environment and run the executables and scripts in that virtual environment to make sure it has no malicious intent. I have downloaded and scanned the BD skin and all modules with no "False Positive" ID's. Anytime I can get someone off of Norton or McAfee I feel good about it.
BTW This is one of the nicest skins I have seen thus far "JohnWPB"