Is this the one in Stamford? I've been there! In one corner there used to be a group of traders who had at least 8 monitors (often more!). The second interesting thing about them was that they were what remained of Enron, after that company blew up.
By the way, these people are traders. Developers generally don't work on that floor.
with regard to the Enron thing: The very few ones that - in the moment - are taking in new people in the "Greater" City area are the commodity guys - all the others, as it seems, are getting ready to "letting go" in multiples of that trading floor.
http://www.flickr.com/photos/mikaelv/29636880/