we've seen this cable & computer peripheral decluttering hack from van mardian. now, we have a lazy man's version from dymtns.
"i got the idea from this site but i was too lazy to get a pegboard and screw up shackles in the desk so i came up with a more simple 'construction'. the desk (galant) has a metallic frame with about 1mm gap to the actual desk. in this gap you can easily put through some cable strappers and use the frame to strap up not only your cables, but also everything else."