click here for a little light reading, though I don't like all in one suites and have never had any problems with the free AV packages, either InoculateIT, AVG or avast! and can't agree that a paid for package is better than the free versions. The free ones are variants of fully fledged commercial packages only with a few bits pruned off. So while some like NOD32 may be faster the fact that they're free isn't an issue. Indeed many of the pay for packages are markedly inferior.