I have moved away from always using PowerPoint for my presentations. Lately I have preferred to create presentations through an online tool called Prezi.
Essentially, Prezi is a mind map that when displayed as a presentation, zooms into individual elements of the map to concentrate the discussion around that particular element. Text, images and video can all be embedded into the mind map. Students have found the presentation more dynamic and report that seeing the entire concept or topic initially helps them to contextualise the information that normally appears on individual PowerPoint slides.
This video (found on the Prezi website) does a better job at demonstrating the features and potential of using Prezi.