I've had the pleasure to get to know Bret Updegraf over the past few months. Bret is the president of the local PASS affiliate in Indianapolis, IndyPASS. Bret has been spending the last umpteen months of his life working on a new book on Reporting Services, called SQL Server 2005 Reporting Services in Action.
The book is highly detailed with a lot of useful example code and case studies. I encourage you to take a look at this excellent reference.
P.S. I hope to see you next week at the PASS Summit!