I am looking to use a Raspberry Pi as a home file server. I have several hard drives, a Raspberry Pi, an unused computer case, and files that I need to store. I would like to mount all of my hard drives and my Raspberry Pi inside of an empty computer case that I have lying around and have my Raspberry Pi serve the files on all four of my hard drives to my home network.
I have a PC power supply that I can use to power all of the hard drives. What else will I need to get and do to accomplish my task?