Hi Rachel,
No need to switch.
Horses for courses.
Get a Mac for fun, have a play with it. Did you try AppleScript?
Don’t get too excited about OS holy wars, I use OS/2, Windows, Linux, OS-X, whatever. It all adds variety 🙂 There is no holy grail system, and having a mac around can only add to your professional repertoire. You should buy one out of sheer indulgement rather than waiting for a convincing argument.
Who knows, you may love it and start writing books about it too!
ttfn
Gabs