I'm looking for print boxes, folios, and a commercial grade film processor/printer, like the kind they use in Wal Mart and such... Go to any camera shop, they usually have a place where people leave business cards, flyers, etc. when they are trying to sell photo equipment. I don't know if they will have very much commercial stuff though... I just know they always have a lot of advertisements for darkroom equipment. Well, first off, you are probably already on the best source for any needs in starting up a studio. The Internet is the best source for information.
However, I would not suggest building a film studio. Digital is better, newer, and more environmentally friendly. In my experience doing film processing may soon become extinct. Digital may be the only way to go. I like the site below- so far they have proven reliable, and usually have the best deals on anything related to printing supplies... | 