It is little bit difficult to use ZBrush with my Tablet PC because of interferces. And I have a bug probem with preview mode with ZSphere (adaptive skin). It grew spikes every time you use preview mode. I reported it to Pix and never got a reply for it. I sorta stopped using it because it lost some of my models. Carrara is easy to use with Tablet PC because of keyboard free interferce. Chris, it is in object's property and apply collison with it and enable collison detection in scene property (I think). Falcon, I won't buy Gemini Project because it is not real time symmeterical modeling like in ZBrush. There are alot of success stories with advantage of real time symmeterical modeling. It is always important modeling function because almost everything duplicate sides.