Very nice design. You are doing a great job with the lighting. Your renders have a nice touch of realism. They have that quality that on first glance you ask \"Is it real or is it Memorex?\".
For the \"Lag\" time while waiting for the computer to catch up I have two machines at the desk and that is my time to visit this and other forums so I don't have to sit and watch images render or move.With a complex job like you have there it can take a long time just to set up a shot for the presentation.