Hi there...
Technology is fun
I have now disconneted all online sensors. Reson for that was the computer has to be on all the time and I find out that was not so logical in my wallet....
The stuff I used was 1-wire sensors from Texas
http://www.maxim-ic.com/products/1-wire/
I built everything by myself at work, so it was 2 temperature sensors and a hygrometer
run a program in the PC to log and publish all to my website
http://www.mrsoft.fi/ohj01en.htm
ofcourse I also had an LCD display above the terrarium who show me the current valvues
http://lcdsmartie.sourceforge.net/
sorry my English spelling is not the best
/Jimmy