Just trying a card in your computer is only half the test. You need to go to the manufacturer's web site, and sometimes Apple's, and look for updated drivers. Not all cards' drivers were included in the OS X, or for that matter the 10.2 distributions; that doesn't mean that they weren't supported with a driver from the manufacturer. Unfortunately, you need to look up the products individually on Netgear's site; there is not generic OS X support page. On the other hand, they support Red Hat, SCO and Linux, so there's hope...