http://forums.thinking.withportals.com/dload.php?action=file&file_id=184
This time with better lighting and textures. Four rooms instead of three! Props and platforms instead of cubes! A better debugged FDF (fling dampening field)!
Custom signage!
I've also raised the height in the second chamber to accommodate the head room needed in that chamber.
Thanks all. Feedback (including criticism) is welcome.

