I already have a 20"x36"x60" from HTG and I want bigger. So I am thinking I can do this pretty simply and get a great result. Right now it's in the tumble in my head stage. But I will use this thread to both update progress and hopefully get some suggestions and/or "lessons learned". My thought right now is PVC frame, black/white poly cover, Velcro fasteners. I have not drawn it up yet, but I plan on having supports placed in specific places for mounting of fans and lights. I am also going to try and make it as expandable as possible. Perhaps with several inline T fittings to accommodate future PVC supports. All comments and suggestions are greatly appreciated. It is also my intention to either invest in a digital camera other than my i phone or figure out how to clear the i phone pictures of sensitive data, so don't worry this wont always be all text.