Via Fr. Chris, an in-depth analysis and defense of the now-infamous Rowan Williams “sharia lecture” by Mike Higton, a theologian and scholar of Williams’ work. As Higton says in his brief summary:

Despite everything you’ve heard and read, the most striking thing about Rowan Williams’ lecture is that he mounts a serious and impassioned defence of ‘Enlightenment values’.

Fr. Chris also makes the following point that’s well worth considering:

It is always interesting — frustrating, too — to observe how Muslims are criticized illegitimately for doing things that Christians seem to be called to in some ways as well. 1 Cor 6 seems to suggest that we Christians should also avoid bringing our legal disputes into the secular realm, solving them within the Church wherever possible. The Muslim system goes further than this, so the situations are not identical. But on the face of it, I don’t see the desire to adjudicate some claims within one’s faith community — especially where there are safeguards so no one is coerced to give up their basic human rights, an important caveat in Williams’ proposal — is illegitimate.

P.S. See also Ross Douthat and Alan Jacobs for somewhat more critical, but still intelligent takes.