LaPete Labs, at 369 Congress Street is a great place to go. Bill LaPete, a member here, is really helpful and the darkroom has everything you might desire. He'll help you through any problems you might have...and no, he doesn't pay me to say this. I am in the process of trying to work out a deal with him for PHSNE members and went down to look at what he has as a set-up...came away mighty impressed.