I really like the way that Decktopus works. I created a 7 slide test out deck of this which was really quick to make and really lends itself to telling stories easily with real visual impact. I am more aware of the need for good design than I used to be, and this helps me take the hard work out of combining good content with great style.
You should have a look at this if you love presenting and want something which can add a lot within a short time. For most us who are 'non-designers' this will improve our output a ton.