No, once I finished the arm, the only thing I did was parent the hand bones and finger bones under the arm end bone. I've tried to just build another arm, sans the hands, but I get the same thing. I created it in the top view, and then adjusted it in the side view, and made some final tweaks in the persp view. And yes, it is mind numbing. I have never seen anything like it (not that I'm a seasoned pro or anything, though :p ).