SketchUp Components Collection. Resources: 25 Free 3D Model Sites. Free as a bird: Anders Lejczak's free F4 Corsair model, flying above Vue 7's Spectral 2 clouds.
As wonderful as Vue is, the fact remains that it’s not a modeling application. Sure, you can try to create models using Boolean operations on primitives, but this is just as clunky in Vue as it ever was in Bryce. Vue is a dedicated landscape generation tool, and using it to create models of, say, starships or rocking chairs is slightly masochistic, in my opinion. So, if you use Vue but don’t know your way around a true 3D modeling app such as 3DS Max, Maya, or Cinema 4D, you need to rely on others to create your 3D models for you.
And this can rapidly run to some serious dollars. COLLADA - Digital Asset and FX Exchange Schema - COLLADA.