Garden/Greenhouse monitoring

[tupperck]

I like that idea of removeable storage; the CAN-BUS shield linked to above seems to have an SD slot for data logging purposes. Not sure if logging to onboard storage vs a remote computer would require more complex software, but the ability to log the data permanently is important to me as well.
I imagined a computer base-station that was tethered via ethernet or something to a sensor station. The POE arduino/switch option David mentioned makes me think ethernet would be worth a try. If using some arduino for the sensor station, I think it would be simple to output readings sporadically and have them written directly to a spreadsheet or SPSS file for easy analysis.