I've been playing around with some 1-wire temperature sensors (DS18S20) and an Arduino. They seem to have a really good accuracy and response time, plus the added benefit that you can string a whole bunch of them together.
So next I'm going to have a try at interfacing these with the io-204 serial interface board.
At the moment I'm trying to hunt down a SOIC -> bread board adapter. I'd appreciate if anyone has tips for where to buy/order in Finland. I tried ebay but they either don't ship to here, or the shipping is just too expensive for such a small component.
Anyway I'll feedback some updates once I've made some more progress!