If you will be travelling to S.Paulo - Brazil between 16 - 18 march 2007:
76th Summer/Fall Orchid Show of AOSP (Associação Orquidófila de São Paulo)
AOSP
Cattleya labiata autunmnalis is the star, but many others in exhibition (and to sell, prices stars at R$8,00, less than U$4.00)
Frederico