OK, last presentation-related post for a bit. I promise.
Several people pointed out to me that what I referred to as 'minimalist style' (in my MIGS talk prep post) that Dick Hardt used, is often referred to as 'Lessig Method' , named for Stanford law prof Lawrence Lessig. Lessig's Free Culture talk from a few years back is a must see. So see it here. The Lessig method is more 'minimalist text-only', and there's a parallel path of 'minimalist image-only'. People like Clint Hocking and Seth Godin use an effective mix of both and it's certainly what I was going for. More on Seth's approach here.