Check out the Developer Solutions team's blog for the latest information on Power Toys for Visual Studio.
MSBee is an addition to MSBuild that allows you to build managed apps in VS 2005 that target .NET 1.1.
Managed Stack Explorer
MSE is a lightweight tool for monitoring .NET 2.0 processes and stack traces. Just copy and run. No installation required.
TFS Administration Tool
The TFS Administration Tool allows you to manage users on TFS, Sharepoint, and SQL RS through one common UI.