I'm going to Costa Rica with eight HVX200s and I've been told that it is crazy humid and that it rains every day. People say the cameras will "sweat" and possibly start growing mould or accumulating some kind of mould like film if they aren't kept in a room with AC.

What precautions need to be taken to protect the cameras, the cards, computers and other such gear. Any ideas?

Rubbermaid containers and DampRid.

Cheap and easy to use.