I can't help you out with what card you need for the G4, but..<br><br>wireless networking is pretty standard. We have a linksys wireless router that works just fine with our two power books and one wireless linux laptop. At one point we had a winblows machine on the wireless network as well.<br><br>At work we have some sort of dell wireless network and my powerBook connects no problemo <br><br>sounds like you just need the right adaptor/card for the G4 and you're all set to go.<br><br>[color:blue]All your sock puppets are belong to us</font color=blue>