This page has older mac user feedback/tips on various 802.11n adapters and bases/routers (including Apple's 802.11N Airport Extreme as well as Linksys, D-Link and other models). ( Note: Many older links removed as they are longer valid as of 2015.) (including 802.11n OS X compatible adapter upgrades)
Mac user reports on 802.11n adapters, Bases/Routers Mac Upgrades/Repairs | Storage | Video & Displays | Audio/Home Theater | OS Updates/Tips/Wi-Fi
Mac user reports on 802.11n adapters, bases/routers, networking benchmarks, tips, upgrades