You connect to Integrated amp or AV amp? some AV amp like 6004 have USB input. you can connect it by USB. For Integrated amp buy a DAC with USB / Firewire Input(If your laptop have Firewire) then you can play CAS.
For your price range speaker cable, you can consider Canare, which can found in SSP Wah FXX and Ah Gxr.