i had routers in the past that did their job, but tech support only lasted a year(free), after the year when i keep getting headaches upon headaches with them, and can't get support was stupid. Until my service provider had a Gateway(modem and wireless router), where i know i will have tech support.
well enough of tech support, i got the apple extreme, plugged in a long time ago, no issues here.
and i get to do wireless backups for my mac, and have access to my 1TB wirelessly + much more.
with the new iOS 5 coming soon, you can even setup the extreme on your device, and i heard its gonna do other stuff too.