what many people don't realise, is whatever the render engine, be it poser, carrara, bryce, 3dsmax, renderman, and many more, as long as the tools exist you can make anything

poser may take endless nodes and drag down the time, but the power is there
carrara has the ability to program new ones, making it easier, list goes on

the question falls more to "how much work will it take to acheive it?"
i'd lean towards carrara 5 at the moment, but thats me :)