In terms of dungeons, we have a pretty good idea of what we want to do. By number tweaking, I assume you mean balancing out various different factors (like leveled enemies, loot, etc) or something else? Also, that's quite alright if you can't do scripts or voice acting, but right now--at this point in the project--those are two of the biggest things we need, and that's something else I'm going to post on the first post. Your offer to help is great, though, and it's good to know that we're getting alot of support for this mod.

Ah, okay. I was just thinking of what I handle well. And yeah, I meant balancing and adjusting weight and such.
I didn't want to try my hand at modelling when I haven't done it before. But give me word if you get too much on your hands, okay?

Update: Spring Break is here for me, and I have a checklist of 'to do' stuff for the mod that will be accomplished this week.

EDIT: Also, this is...a teaser of a teaser I'm currently working on haha. Bonus points if anyone can guess where the music is from. (Best watched in 720p): http://www.youtube.com/watch?v=F_iOLOz4Ypk

Haha, awesome. You should have some logo or something at the end with an explosion and blinking lights, and it'll be just like all those cliché filled Action movies Hollywood are spewing out regularily.
But seriously, I'm pretty sure this will be great. Modders adding factions or expanding on old ones often make them throughoug enough for me. I can pick several mod questlines from my memory that are better that the Main Quests themselves.

Update: it's been a while since I've last made an update, but we've begun work on the third location. All NPCs have been created. We have recruited some voice actors and already have one actor's lines for a specific character during a specific quest. We've been silent because of other obligations, but we are still working.