NWN Battleground can be found under the Team tab on Gamespy. It is a RTS/Team PvP module which includes resource harvesting and unit creation. I have the majority of the scripting done and I'm working on balancing it. I have a huge list of features that I would like to add to it, but the best ideas for features come from players.
Here's a poorly-made video presentation:
I invite you all to try it out, and I beg you to give me some feedback. I've been adding stuff that the testers/players have asked for and it's only gotten better.
Thanks for your time.