Which plugin can help me?

This page shows what I have now: http://www.daisypeel.com/podcasts/thoughts-on-using-verbals-on-course/

FB as well as WP comments. I'd like to integrate these together with a more seamless look.

I can't quite figure out which plugin can do this, and going forward, force users to comment and have those comments posted to FB and saved in my WP database too?

Thanks...