Cool, some of them were aren't used in the way the picture is set up(one desktop and two laptops on a smallish desk?) but thats fine, its only a pictures.
They don't seem to look that special to me. My friend's 24" iMac in front of a massive velux window is much nicer. I'll see if I can get him to take some pics.
If I can be so modest - I'd also rate my own (as it is at the moment) as being better than those - although mine doesn't feature an iMac sadly...