Mingle is an amazing WordPress theme and it’s BuddyPress ready! If you’re not familiar with BuddyPress, it’s a social network plugin for WordPress allowing your website to become a fully functional community portal. BuddyPress lets your users interract through groups, forums, friends, status updates, private messaging and a lot more.
Demo: http://themeforest.net/item/mingle-multipurpose-wordpress-theme/235056