We used a similar setup to co-ordinate a project team split between New York and London. At both locations, at the end of the row of desks, we had a monitor at

We used a similar setup to co-ordinate a project team split between New York and London. At both locations, at the end of the row of desks, we had a monitor at about head height on a stand running a google hangout. You could immediately see who was about and what kind of activity they were doing and then gather round the monitor for conversations etc.