Carrara 5 is one of the easiest and most versatile 3d programs around.
I used it for any modeling needs I had(until I upgraded to
Carrara6Pro), it also has the ability to do landscapes, populations, a
full atmosphere editor/global illumination/terrain generator/etc. And,
the object content library is bigger than Vue's, by far!
Basically, anyone who DOESN'T snatch up this free copy of Carrara 5 is
missing out! It is less known than other Daz products like Bryce and
Studio but, in my opinion, it's the best of the three. Get it, use it,
love it!