If you don't fancy trawling through the 10,000 or so comments on places like Mugglenet or Leaky Cauldron, there are other Potter discussions going on exploring the Christian allegory aspect of Deathly Hallows, and a whole bunch of other things too:
Harry Potter, Catholic Boy looks like it was posted a while ago, but is v helpful in getting into the symbolism of the books and what some of the Latin stuff really means. Lupin as St. Francis? Enlightening.
http://hogwartsprofessor.com/ has some pretty profound discussions going on, which get a bit beyond me once folk start talking about the parallels in Greek mythology, but plenty to chew on and respond to here.
Hollywood Jesus, who do a lot of good stuff on film and culture, posted this article after book 6 on Harry as a Christ figure, makes interesting reading in the light of book 7!
a thread from the 'sword of griffindor' blog explores whether HP experiences parallel temptations to those of Matthew 4. In fact, once people have drawn the conclusion that Rowling is a new Tolkien/Lewis they seem to see allegories of Jesus everywhere... There's also this article http://swordofgryffindor.com/2007/06/08/loving-lupin-dumbledore-harry-and-jesus/ which also looks at the Christian angle.
Is JK Rowling a Christian? is explored here. This blog, http://beholdaphoenix.blogspot.com/ is dedicated to Christian themes in Harry Potter and has links to similar sites elsewhere. The author posted on the site, 2 days before the book release, a speculation that HP would die and rise again. 10 points.
soon I'll just start posting about normal stuff again.