I liked Jonathan Bernstein's suggestion of having Joe Biden debate Sarah Palin on health care, sort of like the Al Gore / Ross Perot debate of the NAFTA days. Occasionally the Obama administration has been successful in elevating their least popular critics, like Rush Limbaugh, and this would be a nice example of that. It'd also give us a nice platform for clearing up lots of misconceptions about what the bill does, because you know Sarah is going to bring a bunch of those to the table.
The worst thing about this is probably that you elevate Sarah Palin within the GOP, especially if health care reform fails, which is a problem for any plans to shape the GOP into something more reasonable. But I think we're far enough away from a reasonable Republican party that there's really no point in worrying about it. Maybe after they lose another presidential election or two we'll have something to work with.