According to Scott Ott, they plan to start legislating in 2008:

Democrats who control the House and Senate today agreed to a long term “progressive” strategy to begin making laws sometime in late 2008 or early 2009, once they complete their investigations of everyone in the Bush administration.
“We don’t want to be too literalistic when it comes to defining the word ‘legislator’,” said Sen. Patrick Leahy, D-VT, whose judiciary committee is investigating whether eight political appointees were fired from the Justice Department for political reasons. “However, at some point we think lawmaking would be a nice change of pace from the daily routine of hearings and probes of the criminals who work for Bush.”
[…]
“At this point,” Ms. Perino said, “They seem to be working their way slowly through the Bill of Rights and have yet to get beyond ‘Congress shall make no law’.”

I welcome the Democrats new role of investigators instead of legislators. Less oppressive laws that way.