BuddyPress.org

There are lots of regular WP event plugins. I’d suggest searching on the wordpress.org site / forums. But for a BuddyPress integrated plugin… there are only two… one which is a WordPress MU Premium (paid) plugin… and bp-events from Erwin… the development of which seems to come in spurts. Last I heard… Erwin was pretty far along in making it 1.2 compatible and was mostly just working on an Ajax calendar feature. Hopefully it will be finished up soon-ish :o)