Is there a manual for Bitcoin-Qt on the Mac OS X?

Specifically, I'd like to move my wallet.dat to a different folder (a TrueCrypt volume) and if/how I may configure bitcoin.conf so that the software autopoints to that folder upon launch. Is it possible to have wallet.dat in one directory and the blockchain files in a separate directory?

Secondarily, I'd like to learn about all possible configuration settings - both from the shell prompt as well as from bitcoin.conf. Can bitcoin.conf contain just one or two lines for desired configuration settings?