Some might find that it has a bit of a learning curve at first, since apart from some familiar toolbar buttons, many of the menus are quite different from what you're used to in PowerPoint and Word. I think it is worth trying though, since many people will never learn Flash or buy that program. If you download Powerbullet Presenter, you really have no excuse not to put something more interesting than text and static images on your site.
Click here to go to the Powerbullet Home page.
Click here to go to the download page.