Just backed home from the three days of seminar in Tel-Aviv named "Deep dive into SQL Server Internals with Kalen Delaney".
Two days Kalen explained about SQL Server Query Plans,Tuning and Recompile techniques and the last one was about SQL Server Data Storage Formats.
You know , I thought I know a lot about SQL Server performnace tunning and etc, however, attending that seminar I just realized how much I need to learn. There are lot if tips,thoughts how to tune the system, indexes and etc.
I would also mention about how easy was to understand Kalen (she spoke english at seminar :-)) and her methods to provide courses which is so important for attendants.