just came across this:
PowerCollections.NET:
With .NET 2.0 comes the ability to implement what has been known in C++ as template classes. Generics are like C++ templates, only better.
Leading the development effort is Peter Golde, formerly a Lead Designer for the C# language. Peter is currently building the starting set of classes as well as incorporating ideas from the community into a set of collection classes to be made freely available to the public.
download here: PowerCollections.NET