Hi,
I'd like to request that you implement a bridge with Xenforo (http://xenforo.com/) in the next release of Coppermine. It's becoming a very popular community software, and although it's a paid tool (rather expensive too!), it's a very fast and friendly forum software.
http://documentation.coppermine-gallery.net/en/bridging.htm#integrating_bridge_file_creating_start