Just picked up my Collectors Edition, it is glorious. My little demon skull with Soulstone USB stick (came with a free D2 loaded on it) is now a main centerpiece of my desk.
P.S. Bowielee, I know this issue has seemed to correct itself, but do you capitalize any of the letters in your username e-mail? I used to have the same error as you, and noticed it was happening again when I tried to log on earlier, but I remembered that to get through it I just made sure all my letters in the username were lowercase.
Not sure why Diablo 3 cares but it does.