So my plan is to take the 444 on the 19th. Assuming I pass that I would like to complete the DBA 2008 upgrade and then start on the database developer and BI developer exams.

Has any one taken the BI or DB Developer exams? And would ou have any suggestions for study material? Not exam prep study like the MS Press Sef-Paced guides, but serious, deep learning material. I already have SQL Server 2008 Internals and Inside SQL Server 2008 T-SQL Querying.