Go for it
Unconcerned - go for it.
I teach on Windoze - anything else for I use the Mac. I've an iMac at home and a portable - both running OS X. ( they're not intel mac's though).
You can get a Student edition Office 2004 - i thinkit cost me around £60 - Loadsa plusses - but downside - I occasionally get web pages that don't work right so check it out if you use one of the Flight Planning websites - If you do e mail me and I'll see how it reacts to the mac and let you know. The freebie from Loop didn't work for example.
So when you do get your Mac you can walk around wid a smug smile on your face - Software Crashes - what are they?