Attached Link: http://www.renderosity.com/viewed.ez?galleryid=194918

I've done all of these ways, as well, I prefer MadMax's method, of building a house one piece at a time. If you're using Bryce-native primitives, it won't be too tedious of a file, no matter how big you build it, until you introduce the textures of course! The link goes to my Black tower castle, which I never finished, but is sitting awaiting a matching background scene... Although this is an exterior shot, it's all I have around here at work, and is ALL booleans. Note the underwork on the suspended bridges to the side-towers. this kind of architecture isn't very structurally sound, but was fun to make. Point is, this entire keep setup was designed from the inside out, and is floored, and can be used for inside shots as well.