Computer Kiosks within bank lobbies

Hey guys, our company is looking into installing a computer information kiosk within the lobby of our bank. A place where customers can log on and check their accounts. I'm really not sure the best way to go about this and am just trying to get some idea's of a secure way of doing this.

If any of you have a similar service in your company I would be interested in some details about the setup. E.g., does it connect to your internal network, or a seperate outside line. I really have no idea about where to start with this but was asked to do some research on it. Thanks for everybody's input in advance.

Derek