I finally wrote a tutorial on the modifications needed to create (extra) custom inputs such as the content and excerpt. I was doing a website for a local bike club, in which I used wordpress for a ride organization tool, and needed four extra inputs to further describe the ride a user was proposing. I realize this no longer really qualifies its purpose as a blog, but the more uses the better, as WordPress is an already incredible piece of work! Anyway, I have yet to try and duplicate the process, but these are all modifications that I made to get everything to work.
Credit to ColdForged for helping me pull it all together by showing how to actually call the data once it had been stored in the database.
If anyone has any questions, feel free to post them here or on my website, and I will try and help as best I can