The Dems can no longer rely upon the stupidity and fecklessness of the GOP to make them look good. They have to come up with some kind of agenda. Don't hold your breath, proverbial or otherwise.
Pelosi made some bipartisan noises, but there are conflicting pressures in her party. I think we're going to have a lot of noisy hearings. Waxman's should be interesting and Conyers's, appalling.
We'll also have some innocuous feel-good measures, like a small minimum wage increase. Nice for the high-school kids at Mickey D's. Ethics rules will tighten, but corruption will find its own level. As long as the gummint is as big as it is and can pass out goodies, money will talk.
On substance, not much will get done. The new crop of Dems seems relatively centrist, while the leadership is hard liberal. The Senate will be one block, whoever controls it, the veto (yes, George, you'll have to use it) another. The country is center-right. The House will be center-left, with lots of anti-Bush noise.
The Republic will likely survive. It should be blogger fodder, anyway.