Let's finish this trilogy off Revenge Of The Sith style (going through the motions, nobody really cares anymore, etc.). I have to admit to cheating a bit with this one. I used the DocumentReflector tool that comes with the SDK, mainly because my attempts to create a presentation from scratch were proving fruitless and it seems you need a fair amount of code just to create the most basic of presentations.
Given the increased amount of code I've decided to provide it as a download rather that display it in the page. You can get it from here.
That's enough Open XML for now. Something different next time I think.