Cool VS SDK addition from codeplex: VSIPFactory - A Software Factory for Visual Studio Extensibility - Home
Check this out:
VSIPFactory - A Software Factory for Visual Studio Extensibility - Home
Now, VS SDK has its own software factory too! :)
Don't forget to keep up with this MSDN blog:
Jack Greenfield
Knowing .NET is not enough, knowing VS 2005 and its SDK is quite geeky enough, isn't it? :)