Besides being a lightning rod for the Blu-ray vs. HD DVD wars, the Transformers series also racked up some of the biggest HD sales ever, and now we'll see if the latest entry, Dark of the Moon, keeps up that trend. Paramount has announced it will be released September 30th in Blu-ray/DVD combo form for $19.99, with a "deluxe" release including Blu-ray 3D expected in "the coming months." There's no specifics on any extras included in