Rather than spending a small fortune getting 2 network drops put in I was looking at purchasing either a HUB or SWITCH to plug the three printers into on the network. I'm just not sure if it's a switch that I want or a hub. Isn't a switch really just an "intelligent" hub? Do I simply plug the 3 devices into the switch and then plug the switch into the wall jack? Any help would be greatly appreciated! Thank You!