Excellent ideas, thanks for all your replies and help! I downloaded the SkyDome v3 over at RDNA, and I think it just might be what I'm looking for. I will have to find a convenient way to texture it with the horizon included (background mountains, not just sky), but I'll experiment on my own. I noticed that MicroCosm has a ton of terrain stuff that I could definately utilize since my new animation project is sort of a Post-Apocalyptic adventure. I'll be sure to update you guys with screenshots after a few render tests before production begins!