I'm just going to drop in a quick suggestion to look at Nota Bene, a word processor designed with scholars (including biblical scholars, writers, and legal scholars) in mind. It handles Hebrew deftly.
Wow, your post couldn't have been more timely. I was just now talking to a surgeon client who is writing a book, spending money on professionals I believe are milking him dry. Then checked my email. This is right up his alley. Thanks!