I just attended the most intense and valuable week of training I have ever experienced: SQLskills' "IE1: Immersion Event on Internals and Performance". This is a full week of training given by Kimberly Tripp and Paul S. Randal.
The whole week was great. These are two of the best trainers in the business, period. In this class, they teach everything, so you're getting great content every minute of every day.
I highly recommend the class.