I have a quick question I'm hoping someone will be able to help me with. I intern at a Hi Def production company in NYC. We're small but very capable and we want to create our own server that we can use to allow clients to FTP large files to and from - our web server simply doesn't cut it for this purpose.

I have an old G4 Mac at my disposal, and am pretty familiar with Linux. We need the server to appear visible on a Mac network, and be accessible through FTP software from anywhere in the world, by our clients (who we'd obviously give a user name and password to, to allow them to access specific folders).

What's the best way to go about this? Any tutorials you can recommend? I'd really appreciate anyone who can steer me in the right direction.