Thanks, Nathan.
I was generally thinking along the lines of what you outlined when you mentioned locked off cameras. We would shoot without tracking or dolly or camera moves like tilts or pans. (could probably pull off a slight zoom). As you mentioned, we would get a small "collection" of varying angles of the 3D environments. Whether I could pull this off myself (crash course in Maya?), or just maybe hire a 3D artist to perform this function for us, I don't know. We're fairly versed in AE when it comes to adding "fake" shadows, using AE's lights, could even add a Show Logo on a wall with some tracking/match perspective, etc. I don't know that we would have to see the floor or a head to toe shot of the talent. Hiring a 3D artist might be the way to go so that we could slightly customize the 3D environment if we wanted.
Steve's Newtek idea is also worth a follow-up. Closest dealer is in Minneapolis, looks like.
Thanks!
Rod W.