Looking at Different Writing Tools for Macs
brooksreview.net
brooksreview.net
Here's a screenshot of the minimal full screen with minor formatting features, for example: http://sircram.wordpress.com/2010/09/27/word-for-mac-2011-fu...
The best part is, the toolbar at the top hides away, and the background color can be changed to different hi-res textures.
I'm not suggesting that Word is for everyone. Rather, to dismiss Word is silly. It does a lot, it does a lot really, really well, and while it costs more than the other options in the list, it's only because you are buying other applications alongside it.
I really recommend anyone to give the newest version of Office a shot.
In fact, TextEdit is far more powerful than some people think. Read this post at MinimalMac for some insights:
http://minimalmac.com/post/150121510/textedit-heres-the-thin...
LaTeX + Emacs does a decent job in coordination with Inkscape for images. It's a little bit of a technical solution, but InDesign doesn't exactly have an easy learning curve.
I've also thrown Scribus at some of the users on my network in lieu of shelling out for an InDesign license and they seem to be enjoying it pretty well. In a lot of ways Scribus seems like a good, user-friendly editor, sort of the Inkscape to InDesign's Illustrator.