Don't have Vue 7, but I have some experience with Vue 6 Infinite.

Vue 6 Infinite is a full 64 bit application, so it can use up to 128 GB of RAM on XP64/Vista 64 (don't know the limit on Mac OSX).
Comes with a 5 node renderfarm license.
Imports Poser 6 scenes, including dynamic cloth and hair.
Materials need a lot of fixing though.

I've had no trouble rendering scenes with over 30 hires human figures, plus complex environments. Ecosystems allow you to fill the environment with thousands of instances (with variations!) of rocks, plants, and even objects.

I've tried Carrara 5. For setting up a scene, Vue is far more intuitive IMO. The only thing that Carrara did better than Vue was rendering dynamic hair, for the rest, I vastly prefer Vue.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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