Personally, I have always had trouble with Bryce's interface, and I can't always remember where all the controls are hiding. With Vue, I just open it and start working right away. If you're already very familiar with Bryce, maybe that isn't a consideration...unless they change things around for v.5 and then you have to start all over again! =:o At the bottom line, you've gotta go with whatever you feel most comfortable with. If you're not in a rush, you could wait for the demos. The Vue 4 demo will be out in August; there is a v.3 demo available now. I don't know when the Bryce 5 demo might be available.