Hi, I'd suggest you also look at the DS18B20 type 1-wire digital temperature sensors.
Info: http://arduino-info.wikispaces.com/Brick-Temperature-DS18B20
Some RTC info: http://arduino-info.wikispaces.com/DS1307_RealTime_Clock_Brick
Sparkfun.com has a "breakout board" for that accelerometer, I think...