It's fixed!!!!!!!
Thanks everyone SO MUCH for all of your help and suggestions. It took chkdsk forever to go through the repair process and mentioned that it had to fix a registry error. I'm not sure what caused this but I'm going to be backing everything up tonight, running all of my spyware programs, etc... and be just a little better prepared next time. Lesson learned.
Again, thanks for ALL of your help. You all rock!
A very happy MBC...