There has been some recent discussion about tikz and beamer and I wanted to throw my two cents into the mix. What better way then by showing off the slides I used last week to talk about my dissertation? I had a lot of pictures, all of which I made entirely in tikz. Here is the link.
For those of you following the long OT comments discussion on graphics programs, let me second Chris’s endorsement of Tikz. It is by far the best LaTeX graphics package I have ever used. I couldn’t possibly compete with the manual (what other manual starts with 3 fantastic tutorials?), and this page of examples. I have a certain affection for xypic, which has served me well over the years, but Tikz is just lightyears ahead. That is all.