I also built a raised floor to further define the "office-zone". The idea is to eventually get a carpet in the "bedroom-zone" to further amplify the contrast.
Something which is still a work in progress is a hidden drawer placed on top of the desk. this holds and hides power outlets, USB-hubs, HDDs, cable-clutter etc. etc.
Most of the wood used is FSC-certified.
Oh by the way, if anyone considers placing their Mac like I did, don't! That trick torched my mainboard in a couple of days, as the vents are facing down.