I have just one word to remind you of, Bears:
VETO
Here's another one:
GRIDLOCK
The Dems need 287 seats in the House and 66 seats in the Senate to overrule a veto. Bush has little to lose, and Cheney has no hope of being a serious contender in 2008, so I expect the veto pen to be out in force for the next two years, meaning that while the Dems have great ambition and did a better PR job than the Reps did, Congress will be gridlocked.
Still, it will be interesting to see if the Dems are actually able to accomplish anything aside from criticizing Bush, since they won't be able to use him as a rallying cry during the next election.