Engage is a beautiful BuddyPress WordPress theme. It enables you to sign up visitors to your website and have them build their profiles, send messages, friend other people, interact in groups, share interest, post in the forum, and more. This is a great theme for building community websites.
This BuddyPress theme has a full integration with bbPress. It includes drop-down menus, threaded comments, jQuery contact form and theme colors selectors. The theme comes with custom page templates: archives, contact, full width.