Hey guys. I have decided to step away from expensive portable rigs and focus on one main rig using a macbook as a source. I'm not really interested in speakers at this stage so the rig will be primarily for high end headphones. I also want to be able to listen in a few different places around the house so I was thinking about setting it up with a logitech squeezebox touch or similar. So what else would you get as far as reference dac, headphone amp and cables go?