Everything you wanted to know about energy savings for the residential user. Too much, really.
http://news.enquirer.com/apps/pbcs.dll/article?AID=/20070701/LIFE08/707010306/1079/rss04
http://news.enquirer.com/apps/pbcs.dll/article?AID=/20070610/LIFE0802/706100395/-1/back01
http://www.dulley.com/