I've just started Chapter 2. I spend most of my of my NWN time fooling around with the toolset. I'm going for the persistant world model. When I have enough content I'll put it up and let people piddle on it.

Good luck with scripting, the bioware forums are probably the best place to find what little information is available. However, BioWare's OOD is the best I've seen in a long time.