Cool free tools for SQL, .NET

SQL:
1. QueryCommander: Provides intellisense for Transact SQL, automatic comments header etc.
2.

.NET:
1. FxCop: Checks for coding best practices in .NET assemblies.
2. GhostDoc
3. Open source visual studio! (not Mono!!) SharpDevelop
4. Reflector: Reflector for .NET