[Plugin: WP-FBConnect] Authenticating only certain users

I am looking to integrate WordPress with Facebook, with the first priority being simplified authentication of friends and family to the non-public sections of my personal website.

I configured the WP-FBConnect plugin, and it seems to work fine. The catch is that any FB user would have access to my site. I explicitly want to restrict this to my friends and family.

Has anyone done a mod to create this behavior?

If there is a better (canned or custom) approach to handling this, then I’m certainly open to hear that, too.

Thanks!
Avery