Wireless Access Points w/password

How does one sete up a Wireless network (or several) that require membership (fee based) to access thier broadband. I am trying to figure out what is needed and what it takes to set up a WiFi network that has fee based access (i.e. the user installs thier wireless card and turns on thier browser, then they are directed to a log in page. Once they successfully log in, they are allowed to freely access the internet.)