Well, hello. I think there's probably only a handful. This section is fairly quiet, which is a shame because Dark GDK.NET is great.
As for where to start, I would say try getting your head around C# to begin with, though with Dark GDK.NET, it should be a good stepping stone as you'll already be familiar with most of the commands, though they are used very differently to how they're used in Dark GDK and Dark Basic Pro, because in Dark GDK.NET you are using OOP, whilst Dark GDK and Dark Basic Pro are Procedural, though OOP in C++ with DGDK is optional.
I am working on tutorials to entice people over to the .NET side. I finished a starter tut before I had to work this afternoon. I may work on more over the weekend, as there's still plenty of ground to cover. It's pretty much aimed at newbies & people familiar with DBP but are unfamiliar with how C# works...I guess I could do VB versions as well as it's fairly easy to convert code from C# to VB...in fact there's tools out there that do it with a decent amount of accuracy.