I know that WELS looks like a really neat setup, but... Anyone ever mess with their own datalogging setup. I'm an IT guy. Not a strong programmer or hardware guy but enough to be dangerous. It seems to me that a Raspberry PI type device with several digital temp sensors could be implemented pretty easily. Then there is free python based graphing modules that read data from text files (written by the temp probes) that could be put into HTML pages. Pretty those up a bit and serve them up on a basic web server on the PI on your intranet or even make them accessible online. Heck even run the PI with Ethernet POE so that only a single network cable to the little box is needed. I'm thinking this could be done for $100-150 in parts and LOTS of time haha. I haven't seen it yet, but power monitoring type probes for the PI would make this even nicer. When I get a minute I'll dig up the links I found to easy and cheap temperature probes and the fancy graphing software. Anyone ever have any crazy and cool thoughts like that?