Hi Moopheus,
The dark room rental and b&w processing services in town Boston are getting hard to find. NESOP is still around, but the Boston Photo-coop is no longer in the dark room rental business, as far as I know! I work with LaPete Labs and they are still in business. look them up at lapetelabs.com for further information. They are located at 369 Congress Street in the Fort Point Artist District in South Boston.