Waaaaaaay too neat. Is it for display purposes only, or do you actually use it?
I used to build PCs for people and occasionally I still do, and my own PC has always been a good demo rig. Clean, no-nonsense and with plenty of reliable power.
I use it for gaming, work, as a multimedia machine, for data recovery and maintenance on other PCs, etc. Basically it's being used 15-16 hours/day, so it's not just a show queen.
The neatness is merely the result of spending a few hours on figuring out a good multi-PC setup that doesn't require flash drives or external HDDs. Everything is on a big network disk, which saves an insane amount of wire clutter and eliminates the need to sync across machines.
The rest of the cables are kept out of sight by attaching them to the back of the desk and/or putting them together in one of those flexible plastic cable covers. It's amazing what a few hours of cable management can do.
Mind you, the laptop and netbook usually aren't on my desk. I had the laptop on there for maintenance (ccleaner, virus scan, etc), but the netbook on my right was put there for the photo.