The main thing that sets P6 out over P5 is the spot rendering feature. I don't use any of the rooms (I hate them) but in order to keep up compatability on the models I want to use I had to upgrade from the Pro-Pack. Poser 6 is a resource hog .. the bigger you go, and the higher you set your render settings in Firefly .. the longer everything takes. I'm running a 1.5 ghz pentium with 384 megs of memory and even a small, simple render maxes out my system's resources. Only step up if you have a system with the capabilities to handle it.

Just enjoying the Vue. :0)