Chris asked to see some pictures of the Pi's. This is what they look like. Not a very good way of handling them, which is why I am searching for a suitable case.
This is the Simple Pi Rack II that I mentioned previously. Its the best multi-Pi case I have seen so far. There are lots of single Pi cases but hardly any for multiple Pi's. This one has power (via a 7 port USB hub) and a network switch underneath. The link to the message thread over in the Raspberry Pi forums is: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=40&t=41669