I like this minimalist wall hung work top posted to Wherewedowhatwedo. It consists of a hollow wood box that allows all the cabling to be hidden. Description from the site:
Vitra .04 office chairs by Marten van Severen, Lifto desk lamps by Belux, USM Haller storage unit for laser printer, hard drives and UPS. Bang & Olufsen phone, Harman Kardon's SoundSticks, The custom built desk made of black MDF is 5 meters long and hollow where all cables are drawn..
There are more images at Flickr if you follow the link.