Two other quick wishes for Bryce 6:

1. I would LOVE to be able to boolean model something, then when I know that object is complete, to 'compress' it (or something) so it turns into a mesh of the visible parts. Does that make sense?

Simple example: create a thin positive disk and use a negative elongated cube to carve a square all the way through the middle. Then 'compress' that group, so it turns into a single neutral mesh of a disk with a square hole in the middle, no negative boolean object would remain.

2. Collision detection.