I just purchased Bryce 3D last week. I have used Poser, and RayDream Studio for years but haven't had the chance to use Bryce. After seeing the great art created in Bryce I had planned on buying Bryce 4 but found Bryce 3D on clearance. I downloaded a few props from the Bryce Free Stuff page but haven't had any luck in using them. The files I've tried are .obp files. Does Bryce 3D open these types of files or are they new to Bryce 4? The manual doesn't mention them at all. Thanks for any help.