I just got an email from Steve Cellini. He runs the Microsoft Professional Developers Conference or PDC. (Not to be confused with Primary Domain Controller, a very common misconception!)
They just announced that they will be holding PDC 2005 at the Los Angeles Convention Center in Los Angeles, CA from September 13 to the 16 (Pre-conferences September 11 and 12). You can sign up for updates and more details from the PDC site.
I generally hear good things about PDC, although I have never been.
This is in follow up to my original post.
