If you want to hide out on the internet, you can get Torpark, which is built on the firefox platform - although you don't need firefox to run it, for those of you who don't already have it.
This is the problem with microsoft stuff - it's default so people usually use it, which means that microsoft can get away with it. *Ahem* Microsoft Office *ahem*
However, more and more people are now starting to discover that macs are better - and if more companies switch to it, Bill Gates and Co. are certainly going to have a 'run for their money'