I'm thinking of purchasing the 802.11n airport extreme base station to replace my linksys 802.11n wrt160n. I have the 2nd version of the router, which is currently unsupported by dd-wrt, so there's really nothing else I can do atm to improve network performance. I did a little research with wireless n networks and found out that having wireless b/g clients on the network brings down performance to b/g level. Please correct me if I'm wrong/misunderstanding this. I looked at Apple's wireless n base station, which has simultaneous dual band. I'm guessing this is something that'll grant me the full performance of wireless n? Are there any quirks or anything I should know about this? Would I be seeing a noticeable upgrade going from that linksys router to this? Regarding performance, are there any other routers in the same price range($250 and below) that would provide noticeable/significant performance over the Airport Extreme? Also, after ditching the poor performing linksys n router, I switched back to my airport express 802.11n running on 2.4ghz as my main base station. I'm curious if I'll be seeing noticeable performance going from the airport express to the airport extreme? Thanks!