I don’t have a complete list, but as the Waxman-Markey bill makes its way to a final vote, it’s worth pointing out that just about all of the undecided Democrats who’ve come off the fence have announced that they will vote for it.
Some prominent examples: Reps Ike Skelton (D-MO), David Scott (D-GA), Sander Levin (D-MI), and, possibly, uber-Blue Dog Allen Boyd (D-FL)