We came up with the idea of getting a server and just loading all of our music/video/etc files on to it.

If we can get our hands on a server (for example from newegg), how could we go about setting this up? The server itself doesn’t need to connect to the internet necessarily, since we only need it to be accessible to the other people on the floor. In fact it’s ideal that the server be completely independent of the internet, since we don’t have any kind of administrative access to the school’s network.

Ideally what I’d like to do is just plug a wireless router into the LAN port on the server and have that wireless network accessible to anyone with the password. I’m pretty sure it’s not that simple though, so if anyone can point me in the right direction for how to set this up I’d appreciate it.