I plan on adding my PowerBook 520c to my wired network. The wired network will also consist of an AirPort Extreme Base Station, an ethernet switch (model not) choosen, my iMac, a Linux box, and at times a Wondows Nt book. Is this the adapter I need for the 520c? Asante 10BT Thin combo AAUI Transceiver Is there anything I am overlooking. The 520c is running 7.5.