Norton 360 ( v. 3.0 , complete package)

I have despised Symantec for years due to their bloatware which manages to wrap its tentacles around everything on you PC. Now that McAfee has become a joke, and after failed attempts with G Data and a few others, out of desperation I gave the newest Norton build a shot. What a surprise indeed. The suite is light on your resources, which is a 180 degree turn from past Nortons. The AV is strong and with the new Norton Insight, it can match your PC files to a database of trusted files, which will significantly cut down on the scan time.
The firewall is good, although firewalls such as Online Armor and Outpost are superior. One big issue with teh FW is that if you choose to manage the security settings yourself, be prepared for a LOT of program queries. Not just broad ones like "Allow Firefox", but queries that will actually get into the sub-processes of software. As you can imagine, if you disallow something that doesn't look familiar, you can be gimping your own system.
I was really pleased with the additional utilities provided. You get a defrag, a registry cleaner, etc, but best of all you can control what processes boot up upon power up through a simple Process Manager that actually gives you publisher info for what is turning on. I was able to free up right at 500 megs of memory by disabling some non-necessary processes. A super addition for anyone who runs games or rendering software etc.
If you have avoided Norton due to its past reputation or past experiences, I would really recommend you give this a try. Finally after multiple security suite attempts I've settled on one that actually makes you secure and stays out of your way.