I am very visually oriented and often prefer some graphic representation over text. Now, as I am starting to get into the writing face of my dissertation, I am looking for how to better incorporate visuals (and other media) as part of my dissertation. I will probably end up with some more or less traditionally formatted document, although I have been thinking about writing a hypertext document. However, I will probably make it as an electronic document (PDF) with included audio and video, and of course plenty of graphics and images.
Looking around for some pointers, I came across this blog post on adding graphics to presentations.