Ok, you are wondering what a cable tidy is right? ;-)
http://cpc.farnell.com/1/1/30472-cable-desk-tidies-grey-80mm-22008-pro-power.html
Picture me with a 83mm hole saw and a 80mm cable tidy, then my face once I realise they are are in fact different but I have already drilled the hole.
If anyone knows where I might be able to source a couple of these things (Bunnings = cannot) I'd appreciate it.
Cheers,