I really don't feel like I am in control of what goes on on my computer which worries me since I have tax data, customer info, etc.
Guessing your a Tax Accountant and therefore would advise that you have someone set-up your computers properly. Not sure of all the legal requirements but transferring tax details from home to work etc require certain rules/procedures to be followed as a start.
It may come done to who is available to advise/set-up your system and their preference. Mac/Windows. And even the type of software you can run comfortably for your needs. -- Paradigm Shift beta test pilot. "Dying to defend one's small piece of suburb...Give me something global...STAT!