I am not familiar with Mac computers but I guess I should be...
I spend most of the time listening to CDs or XM radio. Those sources are not connected to the computer at all. I do have a set of cheap headphones for listening to DVDs on the laptop. They are in a drawer somewhere...I also have a cable adapter to connect the laptop to the PrimaLuna but the computer is so noisy that I usually just resort to the headphones.
I plan to return to the 21st Century and surround sound as soon as possible but right now I am enjoying having a space isolated from the traditional "living room" ideal.