Since the "gen-pop" forums can be hard to read at times, I thought I'd post a link to this here. It is chock full of good information. It's a better version of the same sort of thing I wrote up last night... my Big N Tall brothers, please do yourself a favor and read it
http://www.myfitnesspal.com/topics/show/1077746-starvation-mode-adaptive-thermogenesis-and-weight-loss