I currently have the following hardware and I would like to know if I need to purchase a USB wireless adapter. My understanding is that with my wireless access point I do not have to purchase one, but I have been unable to make it work. Please provide some guidance: In a separate room: Wireless capable modem: Westell 327W (connected to DSL) Router: Linksys RT31P2 (used for vonage VOIP) In the room with the TIVO series 2: Netgear wireless access point WG602 v2 (previously used for wireless computer but no longer needed) And I have a wireless powerbook G4 mac. Please help! I would really appreciate it.