I don't know much about wireless. I have a linksys G router that I have some older hardware connected to. A combo of B and G. I have a hard wired pc that holds my videos and stuff. I want to stream video to my 2010 MacBook Air. The linksys works but it's slow and choppy. As a cheap alternative I thought I could get an airport express, connect it to one of the ports on the linksys (using it as a switch) and using the airport in N mode to only my MacBook the linksys would still serve wifi to the rest of the house, and I would have a fast N connection for my MacBook on it's own wifi. My question is, will I kill speeds by hardwiring the airport express into the linksys router? The pc I want to pull files from is hardwired into the linksys also. My thought was, since it doesn't go over the air in G mode, speed would be maintained until it gets to the N airport. Can anyone else let me know if this is a good idea or if it will work at all? Thanks.