Tom if everybody went to Macs they would have just as many viruses. Windows is targeted because it is dominate. I have used many PC's for a long time and have no virus issues. You just need to setup a system properly. The HW is really no different. And Mac's have plenty of sw upgrades, incompatibilities, lack of docs, specs, support etc... On a "PC" you can have linux or whatever, don't have to have MS.There unfortunately is SW that people use that is windows only tho.

No need to think outside the box....
    Just make it invisible.