Buy the Linksys WUSB11 Wireless-B USB Network Adapter for $12.00 (reg. $59.99).  USB ports have become a commodity and having to connect the printer to different computers is a huge hassle. The Wireless USB adapter allow you to set up your printer on the network without having to fish wires everywhere. The adapter is compatible with all wireless routers. The wireless B connectivity will not hinder your network and features pretty good speeds because documents and images transfer quickly. 

Linksys WiFi Network Adapter