Last night I did a presentation for the monthly gathering of agilistas in Sydney, so I thought I should publish my slides here.
There is no sound so they may not make too much sense without any context, but here they are anyway:
http://prezi.com/vllsdawtxfxv/but-where-do-the-stories-come-from/
They are created in a free software package called Prezi.com that allows you to zoom in and out of material so you can present a mindmap rather than a set of slides.
I am sure with practice and creativity you can create far better presentations, but even as a first try I found it really easy to use.
James King 