I agree with what's been said, especially about using what you think will suit your needs best, which is actually most important. Bryce 4's interface doesn't bother me much, but editing materials seems to be kind of hit/miss, for me at least. hen again, I haven't studied it as much as I have studied Vue. I like Vue's 4-viewport interface, and yes, it is easy to move around quickly in Vue. On the otehr hand, Bryce 4 seems to deal with models with LOTS of parts easier, whereas Vue can become slow after you get over about 300 objects in a scene. But that might be more of a RAM thing, and I only have 128 megs of it. I might end up upgrading to Bryce 5 later this year as well as Vue, but it's Vue 4 first.