I'm also a mac user... I just dual boot
If you ever need help with the lighting of the maps, PM me!
I can do building, scripting, and I'm good at graphic designing, but never did any texturising so far. I have Paint.NET and .dds support, so it shouldn't be too hard.
I'm getting with some of my writer friends and we're going to do the first couple scenes soon. I'll upload em when done.