A few changes id like to make to my forums

[corbis]

First off this is my forums.. http://www.thebaymusic.com/forums/

THere are a few things i'd like to change about my forums.

1. Id like to be able to have certain sections of my forums (ie. downloads section) only available to either a certain user group, or to only users who have had 50 or more posts. Can this be done without a hack?

2. I want to make the quick reply automaticly enabled, without having to click the quick reply button in someones response/reply.

Any suggestions are appreciated!