Interesting debate between the two Supreme Court justices with transcript here. Haven't read it through entirely myself, but its proving quite interesting thus far. For an overview, see the Slate article from today.
Also from the legal world, I urge everyone who has an online subscription to the NYT to read Stanley Fish's blog. He posts about every week, and often times the discussions are interesting and attract a peculiarly diverse range of comments, for the NYT anyway. The debate that has held my intellectual attention and still confounds me to a certain extent is one that began with Fish's October 22 blog entry about professors bringing politics into the classroom. In standard Fish fashion, he deviates from the liberal norm, though this time it seems less like self-indulgence and more like an attempt to lay-out something substantial and nuanced. For those without NYT access, e-mail me and I will send you the resulting 225 or so pages worth of criticism, responses, and discussion.