Kera's awesome; right now (at least, I got the email about this very recently) they're building presentations for you, for free if you just make a little screen

Kera's awesome; right now (at least, I got the email about this very recently) they're building presentations for you, for free if you just make a little screencast of what you want. I don't have anything to use it with but it's the most streamlined/natural/intuitive experience I've seen yet.