That wasn't too painful... They just called me, I signed a document or two, said I would be glad to donate my organs, and gave them my Visa card. All told, it was a painless event.
Now all I need to do is get a new photo and I'm done.
D'oh in the amount of time it took to write this post, they called me for my photo.
Now all I need to do is get my license and I'm done.