It's kind of a mess under there after getting this new desk, but here you go:
<snip>
All the wires hanging down will be run to the left and down the leg, into the wire tubing. Just havent gotten around to fixing it yet...
lol...purtee on top but messy on the bottom. I have the same wiring mess and I was considering picking up those wire tubes (don't know what they're called, exactly) to clean up the nest a little.