Truth be told, I suck at making non-organic things. I usually model creatures, aliens and stuff. So I guess that's a big "I just import the free models." However, I've stopped making aliens for a little while so I can learn to make my own shps. I'll be doing this in a program called Rhino3D. If you're interested, check out the Rhino forum at Renderosity to see what the users there think of the program. Oh, and drop by Andrew's site. Not only does he have ships, but he has a creature or two that I've made from the StarWars universe.