747b0392__5_1___Postgres_OnLine_Journal__Microsoft_SQL_Server_2008
[Feature] Advanced Database Tuning Wizard [MySQL 5.1] No [PostgreSQL 8.4] No [Microsoft SQL Server 2008] 
Yes - SQL Management Studio recommends indexes to put in etc. Very sweet. NOT available for Express or Workgroup.
Cross Compare of PostgreSQL 8.4, SQL Server 2008, MySQL 5.1 - Postgres OnLine Journal
Microsoft SQL Server 2008