At the minute I'm using MSE, I would love too know if their are any Stand alone Firewall, being self contained and if their is any chance of running something alongside MSE..
I use MSE, and I also use Ccleaner, keep the system fully updated and run a full Scan maybe once every two weeks too a month.
I should really look in too checking too see if their are any Patches and or updates for the 3rd party software I'm using, such as DVD Burning tools.