Sooooo... GET THIS PROGRAM!!! It is super easy to use and by far the simplest 3D app I have ever used, and I've touched most of them, except Sketchup which I've heard is also super simple, anyway it's like mini-Z-brush without all the complexity. If you just want to open something and get straight to sculpting without worrying about much else I recommend Sculptris 150%. Oh and I haven't told you the best part... IT'S FREE!!!!