SDL, I'm not certain that everything that can be done with Lunar Cell can be done in Bryce. Maybe I don't know, but I don't think you can get such realistic planetary textures in Bryce. though, to realize the full potential, you should play with them in Bryce. :-) Of course, being a PS plugin, it cannot animate anything, but as you said, you can do animations in Bryce.

-- erlik