I've got an emac, a 12 inch powerbook and a HP 5550 printer. The emac is connected to a Netgear router (got Broadband) and the powerbook has airport. The printer is connected to the emac by a USB printer cable. Is there any way to print from the 12 inch powerbook to my printer without being wired? By the way, what does printer sharing do? I have it turned on, on the emac and it doesn't seem to help. Thanks for your help!