We use Linux for much of our office work. It is safer, faster & more user friendly than Microsoft Windows. It is also much cheaper than buying a Macintosh. If you are sick of living in fear of catching a virus, we recommend giving Linux Ubuntu a try. If you need help, we will install Ubuntu on your computer for a very reasonable price.
(Note: After you download and install Ubuntu, go to "System>Administration>Synaptic Package Manager" to view the list of THOUSANDS of free software available. We like Linux:)