Installation tip: While Liquid Nails eventually does a nice job adhering the insulation to the roof sheathing, we got tired of pounding on the foam boards and holding them up overhead, waiting for them to stick. For the second layer of insulation, I held the boards only briefly while Bill put in a few screws to keep them in place until the Liquid Nails hardened.
With the insulation up and the ceiling fans and overhead lights wired, we started on the ceiling itself. After much deliberation, we decided to try out beadboard. We got the lower ceiling clad before running out of steam, and we've decided we like the look. Next up: tackling the larger--and trickier--section of ceiling, where we have to accommodate boxes for three fans and four lights. Not to mention the wood-stove pipe.
When all the beadboard's in place, we'll paint it flat white (it came primed with a slight sheen) and trim it. I'm toying with cleaning up another batch of pallet wood boards to use as trim.