DD, I'm somewhat more attuned to this type of proposed legislation than most (other legislation) because my wife works for a foundation that is actively involved in these issues. There's a fundamental schism right now in the environmental NGO community. Some large, well-known NGO's have thrown their support behind "cap-and-trade" to the dismay of those other NGO's who prefer the "cap-and-dividend" proposal of Cantwell/Collins.
From what I've read recently, Cantwell/Collins is picking up interest while cap-and-trade is already on the scrap heap. And I have to say good riddance.
Cheers.