Check out this website if you haven't already:

http://www.scifi-meshes.com/forums/content.php

Some great examples of 3D art here, a lot of Star Trek and Star Wars inspired work. Of particular interest is this customised CR90 Corellian Corvette by DWL, just check out the level of detail on this thing.

http://www.scifi-meshes.com/forums/show … llian-CR90

There's also a nice WIP of an AT-AT Walker and a few other choice gems including work by Fractalsponge, who's greeble encrusted pimped out Uber-Star Destroyers I'm sure you've seen before.

http://www.scifi-meshes.com/forums/cont … s-Projects

Well worth a look.