Quite by accident, while searching for the answer to another question I had about R (a powerful open source statistical language), I ran across a nice set of PDFs from a short course called, "Data Analysis in Paleontology for R." Gene Hunt, curator of Ostracoda at the Smithsonian, ran this nearly two years ago. The PDFs contain slides on topics ranging from the basics of loading data to running a PCA or correcting for phylogeny. As an added bonus, each includes some short exercises to practice your new-found skills. Click this text to follow the link, and then look under "Resources." The slides are posted as five separate PDFs.
I have now switched to R for nearly all of my statistical analysis needs, and have been immensely satisfied so far. Expect a post on this sometime in the next few weeks (hopefully).