Well, only four days and already my first wrong prediction -- Obama and the Democrats are going to let Hillary Clinton have her rollcall vote after all. As noted, I see nothing but upside for the Dems on this decision. Hillary will get several hundred votes from her most committed diehards, but some of her delegates (see "Rendell, Ed") will tip their hat to the new revolution and vote for the Big O anyway, and then they'll move to make it unanimous (which is how they use to do it back in the day).
Now if they can just keep Evan Bayh off the ticket they'll go a whole week or two without screwing up.