BTW, hackers, if you did not see it yet, check out what EncFs offer you. Essentially, it allows you to have multiple passwords on the same repository, and only files decryptable with currently used password are shown (require special option during mounting to ignore incorrect password warning).

Using that you can have any number of passwords and any number of "partitions" inside your folder. This is not like hidden partition in TrueCrypt, where you can not prove it exists at all.