I don't see much change, as this is pre-January 2009. What that means is that while most Democrats opposed many parts of Bush's agenda, they didn't randomly throw wrenches into the legislative process to prevent Bush's legislation from getting voted on, at least until his second term.
In any event, the Senate is 50-50 until Jeffords defects from Republicans in May 2001, and Republicans have a slim 221-212 House majority at the beginning of 2001. Even if Democrats have the Senate at the beginning due to Chuck Robb defeating George Allen in Virginia or Brian Schweitzer defeating Conrad Burns in Montana, not much will change IMO.