Welcome to all the new faces.
For modding stuff, Sombre is probably the person to ask, with quantum_mechani, Endoperez and me the next in line. Spellmodding, DrPraetorius is your guy.
If you need documentation on Dom3 above and beyond what's in the manual, I'm the guy to come to. Gandalf also has a lot of helpful stuff.
Mapmaking is a specialty of mine and particularly Gandalf's, so help in that department is also near at hand.