I'm putting on a full day of query tuning at Connections in September and at the PASS Summit in November. The advantage of going to either of these is that you also have the rest of the conference sessions to collect additional information and details.
"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt
Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning