Attached Link: http://www.renderosity.com/viewed.ez?galleryid=290371&Start=1&Artist=ChuckEvans&ByArtist=Yes

I know it might not be a good suggestion but you might consider Vue 4 (at a really great price now). I'm not very good in 3D stuff but was able to make a "reasonable" image with a lot of lights (inside and outside) sort of like what you are trying for in the attached image. WOrking with lights in Vue is very easy!