Lan servers?

Reading through the Horton book, I am reminded of the fact my school does not have a large LAN server. We have no network for saving material and the school is planning to implement a graduation requirement for a digital portfolio. Some students will be working with imovie, as we are an Apple based school. Some will build websites to fulfill the requirement. It seems to me that in order to have this be a “ Requirement” the students are going to need a safe place to store word, PowerPoint, audio, photo and video files. I would like to know how man of classmates have LAN server like the one we need?