A Family Collaboration Server?

esobofh asks: "I'm interested in putting together a server for my family that would allow everyone to share & store pictures, movies and music. Whenever we have a family gathering, there are always a ton of digital cameras out and clicking away, so I'd like to have everyone share and submit the pictures and movies they've captured for everyone in the family. I am sure I could roll my own collaboration server, but I'm hoping there is something already put together and pretty. I'd like it to use standard files and directories for storing photos (as opposed to a database), that way the files can easily be moved and manipulated. Is there an application that can handle user accounts, picture submissions (file upload via browser), and other such content?"