I began installing the R30 insulation this evening... that stuff is rediculously thick. Due to the fact the idiots who built my house decided to space the studs at random intervals, I ended up strapping the insulation down with duct tape to better hold it in place until I can put the foam board over it.
I guess I haven't mentioned that the room is roughly 10' tall which makes it look smaller than it is in the photos. I'm only building the cooler 8' tall but am going ahead and insulating up to the top of the joists.
Here is a shot of the wall after plugging all the holes with Great Stuff, Duct Tape, and Reflectix before insulation.
And after insulation. Not that pretty but should be functional (and hidden in the end).
Look how thick this stuff is... nuts.