OpenOffice.org Impress

With OpenOffice.org Impress you can do pretty much everything that you can do with Powerpoint at a fraction of the price, well actually for free. Open Office is a major competitor in my eyes to Microsoft Office. It might not look as slick, the major functions are there and work and that is the main thing. Perhaps all that is lacking is some more advertising and marketing for this program, but that, with it being an open source project, is not likely to happen. In the meantime I recommend you give this a try.