A real easy trade with Brian at Play at the Plate. He was after the Diamond Giveaway codes which unlock unique codes. I unsuccessfully tried to participate in last years giveaway but only US residents (and members of the armed forces stationed overseas) could have the cards delivered. Always remember to read the fine print.
So Brian was collecting these to unlock special diamond digs. From this post it appears he is well on his way to achieving his goal.
I received some super Red Sox cards in my part of the deal.