Here's a current WIP on what I hope to be an art gallery room with internal lighting only. Its entirely inside a box object. My goal is to create a good fake caustic render using Bryce and show off a well textured woman either standing or sitting on a sofa. The overhead lighting and the lamps are the only thing lighting this picture and it obvioulsy has a ways to go. The overhead lights each have 4 stretched spehere lights in them and the dome was something I made in Metasequoia textured in Bryce. You got the idea? If you need more help, let me know.