I do have Acrobat 7 Professional, and I tend to save most of my documents as PDFs, so I might just leave it at that, but I'm not sure I would be happy with that.
I just have tons of documents, and it's getting harder and harder to find them all. I might try to collapse the elaborate chain of subdirectories, and use something like X1 to find things as I need them.
Best,
Keith