Version 4 of SQL Server Migration Assistant Tools have been released

If you are looking at conducting a migration to SQL Server from some other platforms (as you should be :)) then you need to look at the newly released Migration Assistant tools:

Sybase

New! Download SSMA 2005 for Sybase v4.0 - This release has many enhancements in the SQL conversion engine, has a new Tester component, and fixes multiple bugs.
 
New! Download SSMA 2008 for Sybase v4.0 -In addition to multiple improvements on SSMA 2005 V4, this release automates migration to SQL Server 2008.

Access

New! Download SSMA 2005 for Access v4.0 - This release now supports Microsoft Office Access 2007 databases.
 
New! Download SSMA 2008 for Access v4.0 - This release supports Office Access 2007 databases and automates migration to SQL Server 2008
 
Oracle

New! Download SSMA 2005 for Oracle v4.0 - SSMA to automate migration of Oracle database to SQL Server 2005. This release greatly increases the SQL conversion engine in addition to making many improvements across the product.
 
New! Download SSMA 2008 for Oracle v4.0 - In addition to multiple improvements on SSMA 2005 for Oracle V4.0 this release automates migration of Oracle database to SQL Server 2008.