I am always looking for new projects. Bought a bunch of stuff for this yesterday. Are you planning on putting thermal grease between the cold plates and the fermentor? I will use it only for chilling, however, and will control it with a programmable auber PID that I have lying around. I do wish the author of the instructions would post some result to see how well it works. For me it is about space. A very nice display fridge was on craigslist yesterday for only about 400 dollars, which is an ideal fermentor, but I just don't have any space for it.