Jimmy's Insulated Mash System (JIMS) is possibly the coolest homebrewing system that I've ever seen. The 26 gallon mash/lauter tun and kettle are both created from large stainless steel cylinders with electric heating elements embedded in their sides, wrapped in insulation, and surrounded by wooden slats that give them a "hot tub" feel. They each have hinged lids with built-in motor-driven stirrers and exhaust ports that allow steam from the mash and boil to be vented outdoors. I particularly enjoyed reading the step-by-step description--complete with pictures and diagrams--of how this system was built. It sure puts my beverage cooler and stock pot setup to shame!