For my home computer, I originally installed Symantec Corporate Edition, which DoD can supply free to employees, even to include the subscription. (Thanks, taxpayers!
The problem was getting NAV 2005 that was provided with my computer, uninstalled. (No, it ain't as easy as you would think...
Then I decided that I would like to have parental control over what my 12-year old accessed, and the Cox Security Suite seemed the logical choice. However, to install it, I had to uninstall the Symantec stuff (which, fortunately, was
as easy as you would think) so now I am relying on Cox software for parental control, virus control, and some aspects of spyware and firewall protection.
BTW, for those who may use the Cox Security Suite at home, but are used to similar software which downloads and activates automatically: CSS does neither.
And while it reminds you when its files needs to be updated, it does not remind you to actually run the programs.
Just be sure to remind yourself to periodically scan the drives with the software.