Sweet! and cheap, I already went and picked this stuff up:
PC Board Terminals 4@$2.49 $0.62ea Radio Shack
Resistor 1,5 kOhm 5@$0.99 $0.20ea Radio Shack
D-sub 9 female connector 1@$1.99 $1.99ea Radio Shack
circuit board 6x8” 1@$4.49 $4.49ea Radio Shack
DS18S20 Temp Sensor 3@$15.12 $5.04ea www.newark.com
Schottky Diode (1N5818) 5@$0.35 $0.07ea www.newark.com
Zener Diode 6.2V (1N5234) 5@$0.24 $0.05ea www.newark.com
Zener Diode 3.9V (1N5228) 5@$0.24 $0.05ea www.newark.com
Soooooo....One thermometer would cost: $12.71 for hardware, my total cost for hardware was $25.91, I bought spares just in case I screwed something up. The software and Operating System (Linux) are free. I have an old PC laying around, and I might have a laptop if I can fix it.
The Dallas sensor is kind of pricey; I will defiantly try Virtuous's LM34 out next time. From a quick glance, looks like I might be able to simply replace the DS18S20 Temp Sensor? This is what I will be basing mine from: http://pihost.us/~stacato/digitemp/
The stuff I ordered will be here tomorrow,
Thanks for the ideas!