Five years ago, choosing a font for your documents was not that difficult. Why? Well, you did not have that many choices to start with! :) This was the situation until someone figured out how to install Microsoft fonts. However, that "hack" may or may not be legit so I leave it to you to use it or not.
That being said, however, I discovered a way to install more than 300 fonts that are available, either from the ubuntu repository or somewhere else. Check it out! I personally think that this particular tip is a must-do. :)