N.T. Wright spoke in a seminar at Calvin College in January on the topic Space, Time, and Sacraments, and it is a brilliant lecture. The link is to the Calvin website, where audio and video recordings of the lecture are available. I highly recommend this, and thank brother Daniel for commending it to me.
You'll need to set aside a chunk of time for this one. The lecture is broken into two parts, both of which are about an hour long, as well as two accompanying Q&A sessions, the first 20 minutes, the second 45. Calvin also offers an audio excerpt from part 1 of the lecture for anyone curious.
Make sure to listen to at least the first Q&A also, as it seemed to me to add a lot to the talk, and really shows how sharp Bishop Wright is, I think.