I recently posted about my activity as a co-author on Louis Davidson's "Pro SQL Server 2005 Database Design and Optimization". You can read a review of the book here:
http://www.sql-server-performance.com/book_reviews/database_design_optimization.asp<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
And, if you sprecken ze Deutch, posted in German:
Also, I encourage you to take a few minutes and check out Kirk Haselden's great new book on SQL Server Integration Services.