Ive been digesting the filibuster deal slower than a Philly cheesesteak, and much as I deplore the weakminded Republicans who caved, I think the deal in the end will work out worse for Democrats. First, it makes their hypocrisy more obvious; having found the filibuster sacred after trashing it a few years ago will make them look ridiculous when they try to get rid of the filibuster next time that have a small and frustrated majority; second, allowing votes on the three judges they deemed "too extreme" to be confirmed makes them look insincere and petty. This will become more obvious to voters who pay attention.
The Dems are hoping Bush will send a moderate up for the Supreme Court. He is more likely to send them Bolton. Above all, remember that bad as this compromise is, it came about because of GOP electoral progress. The co-called "nuclear option" was wholly implausible a year ago, and the GOP had no leverage at all to get Owen, Pryor, and Brown through. Now they are through, and the Dems ability to block future nominees, though not eliminated, is somewhat constricted. In other words, it was Republican political momentum that brought us to this point, not Democratic strength.