I own a Lenovo X220, bought before the Air refresh. Similar weight as the Air but much thicker. Little more powerful CPU to which I added 8GB ram and a 240GB O

I own a Lenovo X220, bought before the Air refresh. Similar weight as the Air but much thicker. Little more powerful CPU to which I added 8GB ram and a 240GB OCZ Vertex 3 SSD. 12-13" IPS display, is the crappiest IPS I ever saw, still better than a TN though. Battery life is around 5h, OK I guess. Keyboard is great but touchpad is horrible. Mac os x is not an option, but Win 7 runs pretty great on it.