I will be playing as Embermage. It all comes down to what kind of a style you like to play like ranged, tank and so on. Check out this thread that's about skills, it might help you. http://www.reddit.com/r/Torchlight2/comments/zinvr/would_reddit_like_the_rest_of_the_talent_trees/

Yes, thanks. Don't know why it did that cause I copied the entire link correctly. I Fixed it

Here is a link to Q&A with Runic developers. There is a lot of questions regarding game mods and balance stuff with the game.
All the credits go to the RGF (runicgamesfansite.com) guys who made it happen.
http://www.runicgamesfansite.com/content/1434-pax-2012-travis-tells-all.html