beamer is a LaTeX add-on that produces professional quality presentations. This video shows how to get started with beamer.
Introduction to beamer (http://pctex.com/videos/beamer/beamerIntro.html) (Video, requires high-speed connection)
This video uses the file myTalk.tex as an example. While viewing the video you can follow along with this file loaded in PCTeX. To do this, download myTalk.tex (http://pctex.com/videos/beamer/myTalk.tex) and open it in PCTeX. While viewing the video you may use the Pause button and then switch to PCTeX to try the example for yourself. To typeset the sample file be sure to select the PDF option in the toolbar.
More about beamer:
Beamer by Example (http://tug.org/pracjourn/2005-4/mertz/) (PDF, 17 pages)
The beamer manual (http://www.ctan.org/tex-archive/macros/latex/contrib/beamer/doc/beameruserguide.pdf) (PDF, 224 pages)