Bjorn, one thing you have to remember is no one person can change everything. Just because Obama gets a Democratic congress doesn't mean a blank check.
I don't think they'll rubber stamp bills like the repub congress did for W. They'll loose their seats next election if they do.
I'd rather have a split govt, most do, but the thought of the McCain-Palin ticket being able to replace possibly two Supreme Court justices scares the crap out of me. But at least with a demo congress they could stonewall them.

With the election only a few days away I'm still flipping a coin, 2 out of 3? 3 out of 5, etc...
Sucks that out of 300+ million people these are our best choices.