Firstly, unless you are doing animations for broadcast TV/Video, you dont need 30fps, if its standard computer/ CD-ROM playback, 15-20fps should be fine! - if at all possible, lower the amount of things like bump on textures that are not really needed, glasses and highly reflectives are the worst, as are too many lights, so basically just cut back on anything you may not need or see if you can compromise on some aspects of your scene. Changing the fps after keyframes are set should keep things where you wanted them in relation to each other, although exrtremely fast, complex movements will maybe lose some ledgibility if you halve the frame rate! - Check out 'Real World Bryce 4' by Susan A Kichens, its an invaluable resource for any Brycer!!

Adam Benton | www.kromekat.com