While I think Michiel did a great job creating a flyer for a PhD public defense announcement/invitation in Microsoft Word, I think the world can use a Pages’08 template as well. So, based on Michiel’s work, I present the flyer template.
This is the first template I ever built in Pages, and I am much indebted to these nice guidlines on macworld.com. Of course, the template probably needs some polishing, so updated versions might become available in the near future.