Capability for allowing user to post own comments without moderation

I work at a radio station that has several WP user roles — for simplicity sake, let’s say Admin, Programmer, Subscriber, in decreasing order of ability.

Currently, Admin users need to approve comments left by Programmer users. How do I auto-approve Programmer-level comments, without letting that user level administrate comments globally?

Thank you!

Role Approved Comment plugin
http://wordpress.org/extend/plugins/role-approved-comment/
This plugin will allow any specified role to have their comments automatically approved.