You can install fonts by following the instructions here:
If they do not work, please let me know. I maintain the document, but someone else (more experienced and much smarter) wrote the original.
I have been using TeX, LaTeX and ConTeXt for 18 months and have never looked back.
The learning curve is about the same as for Word, if you use Word with it's styles and such. The output is much much much much better. The typesetting is excellent.
If you need to do complex layouts, LaTeX is pretty good, but ConTeXt is better. I currently do a multi-column monthly newsletter using LaTeX, but am switching to ConTeXt over the next several months.
TeX and friends have there own set of frustrations, but I use the same source files to generate PDF, HTML and Word output (through a simple conversion process). I use the TeXShop frontend and the distribution of TeX by Gerben Wierda.
The TeX on Mac OS X Mailing List is very helpful.
Here are some links, some duplicated from the article.
TeX on Mac OS X Mailing List: