I am setting up a trade with one of the CORA members. He is trading a 2GB USB flash drive for a frag of my frogspawn. He told me to give him whatever size frag I thought was fair. My dilemma is I have no idea what would be fair! My frogspawn probably has 15-20 heads on it. How many heads do you think would be a fair trade? FWIW, he was asking $30 cash for the drive.