Excellent Frank, very nice admission to the challenge, here's a link to my most recent upload PWL (painting with light)

http://www.renderosity.com/mod/gallery/index.php?image_id=1838932
Edit: further note.
LOL Piet, yeah this wuss went to bed at 04 30 am, rose again at 07 00 am was on the train by 08 00 am to be in the office for 09 00 am it's now 16 15 PM, and I am still going strong, mind you, I have a ton of help dark roasted Arabica beans :)

It takes one tree to make a billion matchsticks, but one match to burn a billion trees