Here is a list of Debugger Visualizers that I have found...
- GUID Debugger Visualizer for Visual Studio 2005 by Jeff Bramwell
- WindowsIdentity Debugger Visualizer for Visual Studio 2005
- Conchango Xml Visualizer for Visual Studio 2005 (RTM) by Howard van Rooijen
- ControlTree visualizer by K. Scott Allen
- Visual Studio 2005 Cache Visualizer by Brett Johnson
- Visual Studio 2005 Control Visualizer by Brett Johnson
- Regex Visualizer Kit by Roy Osherove