Freeradius like WPA2-PSK

Hello, Is there any way that freeradius act as WPA-PSK?? What i am trying to deploy is a wi-fi network with only one password that is changed every week. Right now I have a open wireless signal distributed over 20 wi-fi routers. This signal is used by all the clients of the hotel, so there is no way to distribute certificate to the clients. -- Paulo Marcon. -------------------------------------------------- “Não sabendo que era impossível, foi lá e fez.” Jean Cocteau --------------------------------------------------