Divorce and Remarriage in the New Testament

Over at Christianity Today, David Instone-Brewer of Tyndale House has an article on: "What God has Joined: What does the Bible really teach about divorce?". This is a topic that needs to be approached with great exegetical precision and applied with great pastoral sensitivity. I've always found the exception clauses of Matthew most perplexing (I've flirted with the incest interpretation in the past), but Instone-Brewer's approach that sees Jesus as refuting the "any cause" ruling of the Hillelites seems plausible.