And for slides there's the Beamer class: http://latex-beamer.sourceforge.net/
(If MS Office/OpenOffice is "office 1.0" and GDocs/Buzzword/Sliderocket is "office 2.0", then what is LaTeX?)
(If MS Office/OpenOffice is "office 1.0" and GDocs/Buzzword/Sliderocket is "office 2.0", then what is LaTeX?)