I too am heading to the tropics, the Peruvian amazon to be exact, to start a sustainable agroforestry project. I am interested in networking with others in the same boat. If you plan to do something similar or are already working the land in a tropical area of the world, please make contact and let's help each other out. One group I will be working with in Peru is Eco Ola at eco-ola.com. They have been at it about three years now and are doing wonderful stuff. If anyone has any new resources or ideas, let me know and I will share our experiences as we go.