Holy crap, there is a God after all! Ok, trying not to get TOO excited, but here's the story so far... Apparently I had an incomplete/partial SBF that I was trying to flash back to Froyo with. If you are looking for a great file source for these procedures, well this one is top in my book:
Droid X SBF
Finally am able to SBF to Froyo now. Seriously, I had the gun out and was about to load it when I noticed this post on how to jump start/power your phone. It's not for the technically un-inclined, but worked like a champ.
http://www.droidforums.net/forum/droid-x-hacks/68222-unbricking-your-droid-x.html
Many, many thanks to those who replied and offered support, and especially for these most useful posts. Without this information, I'd own a $600 paperweight. Believe me, I was ready to give up completely... never do so! Read on, and on, and on... you'll find what you're looking for sooner or later.
My superphone is back in action. Now, wonder if I should give the GB flash another try? Why the heck not.