Nassau Coliseum, 3/10/12 Session 1: 12:30pm-4:00pm Session 2: 5:30pm-9:00pm $45 in advance/$55 on event day. Myself and two friends from work are going to the early session.
Also in the summer is the North Fork Craft Beer Festival at Martha Clara Vineyards. http://www.northforkcraftbeerfestiva...r-tickets.html
I don't think the tickets for that have gone on sale just yet.