Hi, Im trying to find out whats the best option to add a printer to the network. I have 8 Airport Extremes in a roaming network with one SSID covering the whole house. I need to add a printer, so that everyone on the wifi connection can print from either an iPhone, iPad, iPod Touch, Mac, PC. I am completely confused to whether or not I can use a USB printer connected to one of the airport extremes and allow all users to have access to the printer?? The Airport Extreme I want it connected to is in extended mode. All the others are ethernet wired. or do I use an Airprint Printer HP Photosmart 7510 eAIO Wireless All-in-One Inkjet Printer to do the job? wirelessly or USB connection???