Thanks for all of the help guys. I have now de-DRM'd all of the books I bought. I even was able to get Kindle books on my device! I changed them to epub.
I have a couple more questions though that probably don't fit in the .PDF section but there is no newbie section (which is where I think this entire thread belongs). When I make an .epub from a .PDF, or any file for that matter, I get a .epub file and an .opf file. What is the .opf file?
Thanks again all. You have helped me on my way to new horizons full of mobile reading.