Best way to deploy WPA wifi settings

For 10.7 & up clients Configuration Profiles would be the best way to go about this. Under Management - Configuration Profiles

Thank you. How do I deploy that Configuration profile?

Never mind I think I see the answer, Scope is the way to do it.

I am trying to do this as well. It connects to the correct SSID, but it is not passing the username and password. It prompts the user for it at the first logon.

How do we go about doing this for 10.6? Is there a script I could use?
I came across #/usr/sbin/networksetup -addpreferredwirelessnetworkatindex en1 "SSID" 0 wpa "password" and it works when I try it at home but in the campus it doesnt. We have a WPA2 Enterprise setup. Any mods on the script to include the username field as well?

AFP548 has a good write-up on ways to enable WiFi using a script:

http://www.afp548.com/2013/03/06/automatically-enable-wifi-at-login-window/

There is a follow-up article on how to do it with a profile:

http://www.afp548.com/2013/03/07/another-way-to-enable-wi-fi-at-login-window-with-profiles/

thanks for that link, rtrouton. i've been meaning to implement a system wifi profile on some of our machines for, oh, A WHILE. success!