Not that I have a problem with TrueSpace as a modeler. It just seems to take a little while to get a ship started. Wings 3D is a free modeler that was recomended to me a while back, and I think I'm starting to get the hang of it. For simpler things, it gets the job done pretty quickly.
Here's a ship model I threw together in about 2 minutes:
It still needs a little work, but it's a good start on a new ship model.