I am usually on the wind side but thought I would come over to post this.
I just finished watching this Nova program called Saved by the Sun. It was aired on PBS in April of 2007. You may have seen it but if you haven't and got 60 minutes to watch it you can go to the website
http://www.pbs.org/wgbh/nova/tech/saved-by-the-sun.htmlI enjoyed it and it inspired me to start looking into solar.
Ben