I have Netgear WRT624 V.3 "super G" wireless in the basement. My PC and PS3 are connected by wire. My kids 3 PCs have b or g cards and my Son also has an Xbox wireless adapter. My Wife has a new PC with N capability. My router is acting up lately so that the wireless doesn't work until you unplug it and restart. The wired keeps working though. I have the latest firmware they offer, btw. It seems a common problem for this router, with no solution from Netgear other than a hard reset. If they can't do better, they go on my list of companies to avoid for the rest of my life.
Anyway I figured I would buy a new router, perhaps the N standard. So if I do, and keep all my old adaptors, will the Wife's PC work at N speed/range? Or if I replace some with N, will it work? I have 2PCs in the basement with the router, but my son's PC and Xbox are on the 2nd floor. I thought I might upgrade his adapter since he is the furthest away.