I just set up an Airport extreme network and am wanting to run in 5ghz mode as I have two N laptops and an Xbox 360 (using the Airport Express in client mode to connect). One laptop is a Macbook pro which is arriving in a few hours so I assume thats good with the 5ghz band but the other laptop is an older PC with a brand new N wireless card. Basically my question is whether or not this new model N card should be compatible with 5ghz and can the Express as a client utilize 5ghz? I have been doing some trial and error but no success yet and just want to be sure this is possible before I dedicate some real troubleshooting time.