Server :: Distro For Public Library Server?

I have the opportunity to set up our local public library with a linux server. The primary need is for the server to land wifi users to a hotspot splash screen where they will accept terms of use and indicate what town they are from by checking a box or selecting from a dropdown menu. Users of terminals in the library would also have to indicate what town they are from. Things such as content filtering may come later. What distro would be recommended for this? Ease of use and configuration is important. They basically want to track use of the internet.