Thumbs up and down and FB chat MOD

Ok, I know I had some topics requesting that and that but in the end I quit on them all...for now.
This time, I'll promise I will become a donator in here, just that I really want 2 things:
-is there a mod chat like the one facebook has? something like that on a forum wouuld be kick ass!!
-is there a mod which would put the thumbs up and the thumbs down on the bottom/header of any topic? like where the facebook's like button is, you know?

If someone can help me .. this is one of my most important requests