It took me awhile to decide if I was going to use NURBS or sub-division box-modeling. I decided to go with NURBS on the front end. For the rest of the ship, I'll just do polygon modeling. And if I don't like the look of the NURBS, I'll redo the front end using Sub-D modeling.
I downloaded some images as reference. And I looked at some of the free ships for download on various modeling sites. None of them came close to the movie version. Some of them looked like they used the toy models as their reference.
My plan is to have some decent renders of this ship in a week, if I'm not busy with other things.