Well if the Dems do get the filibuster-proof majority, will it really mean they'll use it? I remember when they took the house and senate in 2006, but they didn't take advantage in cutting funding for the war. They didn't push to charge Bush for war crimes, impeachment, or many other goals that they promised.
I see the Dems as being better than the Republicans, but they have the problem of being lazy or unable to work towards a common goal. Will they really be able to get things done if they have the 60 margin? I know that they can't when a filibuster blocks them, but will this yield noticeable results?