I can't say John is wrong in saying not to ignore cables. They do make an important difference, more than some people might expect, and the *right* cable will certainly make your system more delightful.
However I don't think the OP ever meant to *ignore* cables. If I'm right about this, then I would like to add a couple of points to what I wrote above.
The first thing is that your cable-evaluating organs (aka ears) are not functioning at full efficiency while you get used to your new player. You need time for them to settle in. You are loading them up too much if you ask them to choose the perfect combination right off the bat. In other words, listen for a month or three, till you know how your player sounds with what you have now, and you will have a better idea of what you want from an interconnect.
The second point is that the settling-in period gives you time to consider the cable possibilities, plan evaluations without pressure, and above all save money to pay for them.
These look to me like potent arguments for buying your dream player first (with a suitable interconnect of course but perhaps one you already have), then allowing yourself the pleasure of upgrading its sound at leisure through experiments with cables. If you buy this approach, then start off by budgeting all you can for the CDP.