With Leopard and Time Machine I realized that I needed an external hard drive. I went out and bought a Lacie d2 quadra 320g for $180. It is super noisy (even being under my desk). Every time it is in use it makes the noise of that an old computer used to make while thinking- remember that?! Because Time Machine backs up so often I hear it all of the time. I was even thinking of turning it off unless I wanted to back up, which would defeat the purpose of Time Machine. Would you recommend yours?