Please see the LaCie 3T drive. It connects to your Mac when playing your cd's (always connected). It uses a Thunderbolt cable from the hard drive to your Mac. Does your computer support Thunderbolt? You use a USB cable from the Mac to the Oppo 105. It will work perfectly. I suggest you rip your cd's using the AIFF uncompressed format.
http://store.apple.com/us/product/HB313ZM/A/lacie-3tb-d2-usb-30-thunderbolt-series-hard-drive?fnode=5f
The DAC in the Oppo 105 should be fine.
http://store.apple.com/us/product/HB313ZM/A/lacie-3tb-d2-usb-30-thunderbolt-series-hard-drive?fnode=5f
The DAC in the Oppo 105 should be fine.

