We likey this. For just $200, you can get yourself a little 27dBm transceiver for your 17-inch iMac G5 that will let you pick up AirPort signals you wouldn't usually get, plus boost your wireless speed significantly. Basically, the transceiver works like a regular antenna booster, amplifying the wireless signals of the internal Airport antenna. Just install this baby and forget it's there. It works with all 2.4GHz Wi-Fi systems and supports 802.11g and 802.11b. Oh, and it also works with Mac OS 9.x and Mac OS 10.x systems. Oh, and it also completely destroys the austere beauty of your iMac.