I removed a bunch of stuff in my original comment above...I'm really not a MAC person and shouldn't free-think too much.
Certainly, if you do switch, make sure you create PDF files of all your old tax years on the Windows system, and back them up off-computer. Two copies for each year. 1) filing copy only and 2) the big extended copy with all forms and worksheets.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
