from Keith Hennessey on the insurance-industry study:

Congressional Republicans should not embrace the AHIP study, but instead focus on the critical policy questions raised by it. Does the Baucus bill make health insurance more expensive? Does it cut wages for most Americans who today have employer-provided health insurance? If so, by how much?
Republicans should ask CBO to answer these questions about the Baucus bill, and quickly. The AHIP study opens the door to this debate by framing the questions, but CBO is the only trusted source of information to answer them.
It is important that CBO be asked the right questions. Important details can skew the answer. For instance, the Baucus bill would cause about 3 million people to lose their employer-provided health insurance. These people would end up with higher wages. The vast majority, in contrast, would see premium increases and lower wages. It is important that CBO analyze these two populations separately rather than net out the effects as they have done in their previous publications.
The PWC study is flawed in its details, but qualitatively correct in its conclusion: the Baucus bill would make health insurance more expensive for most Americans, and in doing so would mean a wage cut for most. If CBO confirms this, the bill will die.