I asked the same question before CS2 came out. I would like to see something like Bryce lightning for Carrara but I think the master PC running Carrara would be a bit taxed with all that it has to manage. A stand alone render engine, server? that could be put on another PC so that your master box isnt tied up for a week just to do a test rendering would be nice. :) There goes glought dreaming again A lot happening in the background in Carrara (check you CPU usage during a render job) but I think they will come up with something soon.