Hey Roundsparrow,
The temperature sensor is a very simple PCB based on the work nophead has done. its basically a couple of resistors and a capacitor. you hook it up to the thermistor, and it allows you to very easily read the temperature as an analog signal.
more info here: [
hydraraptor.blogspot.com]
the order is actually being manufactured as we speak. when it is ready i will add it for sale individually on the store. expect it to cost from $0.50 to $0.75. like i said, its a rather simple board which you can build on perfboard very easily if you like.