Tell us about yourself!
Nice project. Did you calibrate the sensors using a known temperature source or are you purely just using it as an open ended data collection? I'm guessing the latter.
Arduino Tutorial: Capacitive Touch Sensors
Girino - Fast Arduino Oscilloscope
Arduino - Oscilloscope (poor man's Oscilloscope)
Arduino controlled automated blinds with Web UI
432 MHz wireless sensors and power outlets for home automation using Arduino