After nearly 7 glorious years, i'm finally beginning to toy with the idea of upgrading my Linksys WRT54-G v.5 router. It still works ok for the most part, however i've recently purchased a new MB Pro, and i'm running into issues with an intermittent wireless connection. The specs of the WRT54-G claim speeds of up to 54mbps. The internet package i currently have from Cox provides download speeds of up to 27mbps. So here is the dilemma... What is the point in upgrading to an N router, which will support speeds in some cases of 400mbps, if my main pipe only supports D/L speeds of 27mbps? I performed a bandwidth test, and found that my wireless speeds currently are between 12-15mbps. I do like to stream HD content from my PC to my xbox, and i also have an Apple TV on the network. I've noticed that if i attempt to stream files to the xbox any larger than 1GB, i run into streaming issues. I haven't experienced these issues yet on the Apple TV. The only way i'm selling myself on an upgrade at this point, is to clear up the intermittent wireless issues on the MB Pro. This is the router I'm interested in is the Linksys E4200 or the Airport Extreme. Thoughts?