Nice exterior design Joe! I like the early 20th century look. And those masts are good for stringing wireless aerials. :-) These ambient designs with compound curves gives a pretty sophisticated looking hull.
After much torture learning this damn CAD stuff, I have come up with a preliminary 3d rendering which I have posted on the Frappr Psubbers page.
http://www.frappr.com/?a=myfrappr&id=269116