Thanks, guys.
Poor cable management is a pet peeve of mine too. I remember either us or my mother-in-law (or both) buying some big, expensive armoire-style entertainment center and discovering that it had no good way of routing cables between components. Putting a drill and hole saw to use on a new piece of furniture was the last thing I wanted to do.
I’ve built two A/V consoles and this desk since then, and my rule is that there must be a way (holes, slots, whatever) to route cables between any adjacent cavities and to external power outlets or speakers.