I am also a Ph.D student, chemistry. My own Supervisor advised me to get a Mac. 🙂, He still uses Orifice 98 or so, under Classic. It is so crappy, every time he has to use Word, it hangs. It does not render eps properly, It does not accept newly created docs (from word 2003 win), without its quirks, besides you are saving them in doc. Unbelievable.
The other day a colleague and I had to do some paper in her winblows (under)powered pc with word. Took more time to fight the hangs, the rendering problems, the positioning bugs, that are still not fixed from '97 !, than the actual work.
I said next time, I'll do it completely with some other application. This m$ crap is too much a hassle for what is worth. NeoOffice and OpenOffice never gave me so many headaches.
I have the choice, I started to learn TeX. And I am planning to write my Thesis with it.