Microsoft SQL Server is one of the newer major business database management systems. It is, however, moving into the area of business critical applications, and as a result, capacity planning for MS SQL Server is gaining in importance. With more and more sophisticated versions of SQL Server hitting the market, the amount of literature covering its performance is also growing. While on-line documentation is always available for a contemporary product [SQLS02], it is usually expanded on by books and papers. As an example, a CMG paper addressed the interpretation of standard performance counters provided through Windows Performance Monitor [SCHW02]. Many areas of SQL Server architecture have been covered in books such as Microsoft SQL Server 2000 Optimization Guide [FIEL00] and Microsoft SQL Server 2000 Performance Tuning, Technical Reference [WHAL01]. These publications deal mainly with configuration and tuning of the database. Although [WHAL01] contains sections on capacity planning, it covers primarily fundamentals of queueing theory-based approaches for a user who does not possess modeling tools.