Bryce 7 has new curvature filters and render options in the mat lab and the DTE to get the "dirt" effect if you will, the way its set up now is so you don't have to make a bunch of channels to get the effect, also displacement mapping using images or procedural textures is implemented into the mat lab now below the bump slider. And Bryce has always been able to do booleans on imported meshes, Edit>set solid when boolean rendering.

Do atleast one thing a day that scares the hell outta ya!!