This news from Through the Interface might be something for you:
Free AutoCAD programming webcast: .NET for LISP Programmers.
Here's a brief synopsis of the topic covered by this webcast (to be aired Thursday October 16th at 8am Pacific, 5pm CET):
You know that .NET is a modern and powerful programming environment. But, no matter how much you might want to start using it, you can't abandon all your old LISP code. We’ll show you how to write .NET code that can interoperate with your existing LISP code, with a special emphasis on user interface components.