The next phase has been completed, we are now collecting multiple temperature points from around the home, logging them to a MySQL server and have a basic web page to view the results.
I have been dabbling in the 'Internet of Things' for a while and have finally decided to monitor some 'things' around home. I looked around at several off the shelf items as well as a few DIY type offerings (i.e. Open Energy Monitor) but found them to be to exclusive, to expensive, to power hungry, to big or just not quite right. As I want to monitor lots of things (not sure what yet, but have lots of ideas) cost is important and so decided to do my own DIY job!