Tips for weekend in Brooklyn.

My brother Dave and I are going on a "beer 'n' baseball" weekend in mid April. Unfortunately our schedules didn't fit in with the Redsox fixtures and we are unable to go to our beloved Boston when there are games with tickets available.
As second best we are going to the Big Apple to watch the Mets at Shea Stadium. We have decided to base ourselves in Brooklyn, as we have done Manhattan and the Jersey side a few times but neither of us has really explored that area before.
Has anyone got any tips for eating, drinking or shopping in Brooklyn, please? Any 'must-sees' or places to avoid type advice would be appreciated.
Nick
As second best we are going to the Big Apple to watch the Mets at Shea Stadium. We have decided to base ourselves in Brooklyn, as we have done Manhattan and the Jersey side a few times but neither of us has really explored that area before.
Has anyone got any tips for eating, drinking or shopping in Brooklyn, please? Any 'must-sees' or places to avoid type advice would be appreciated.
Nick