Attached Link: http://www.e-onsoftware.com/Products/vue5infinite/

and since its a company were talking about, invest in v5I eta march 15, it will let you render animations alot faster then v4Pro thanks to baking and some other improvements. As far as user friendliness and being smooth to work with, vue is the perfect choice, but i feel your company will gain alot more by vue5Infinite instead of going with vue4Pro. feel free to check the vue4 vs v5I comparision @ the bottom of that link.