I've been using PHP-Nuke and Post-Nuke for most of my sites for several years now, and so I thought I'd try out Joomla for my next project.
I'm building a site for a student organization at our college, and while the standard registration method would be ok, I want to minimize the effort required to start using the site (remember, these are lazy college students

So given that nearly everyone is on Facebook, I'm looking for a way to integrate the Facebook login with my Joomla site (e.g. so people can just log in through Facebook in order to access their profile on my site). Their Facebook account will have their name, network (to verify they're in our college), and more potentially useful information. I've seen a couple sites work this way, and Facebook has some docs at:
http://developers.facebook.com/documentation.php
Any ideas?