A second system by chance!

In me ordering a new Hifi system for my mothers new house they accidently delivered a extra set of warfdale Diamonds, on dear! So I`m making up a 2nd system for my office/pc room in my house, which is also a good reason to upgrade my main systems cd player. So I have my old Cambridge 640V2 CD player, from my main system, and a new purchase of matching 640V2 amp to go with the speakers and now need to decide which speaker cable and interconnects as I plan to add a tuner also. I was going to go with Chord Silver Biwire or the obvious QED silver anniversary biwire, but am stuck on which interconnect? Ideas would be great please as I was thinking of a chord cobra to match the speaker cable?