Showing custom info in VS .NET debugger

Mattias Sjögren writes on .NET 247 how you can hack the VS .NET debugger to show more useful information about an object in the Watch window.  I must admit, it bugs the life out of me that some objects give you a decent bit of info, whereas others just tell you what they are.

Apparently, you can hack the VS.NET\Common7\Packages\Debugger\mcee_cs.dat file such that you can instruct VS .NET to automatically expand objects.  It can only dig into properties (i.e. no methods).  Googling around, I found http://blog.applicationblocks.com/PermaLink.aspx?guid=72eb29b8-06a4-4b12-a576-f15a3960f10b and http://mark.michaelis.net/weblog/2003/08/20.html.  According to the first one (Shannon Braun), VSTweak (part of PowerTools for Visual Studio .NET 2003) gives you a (rough) IDE to do this.