I am still running a Toshiba Portege m200 for the same reasons: a 4:3 1440x1050 12.1" screen, a discrete gfx card (32M Geforce 5200). It's getting a bit long in the tooth, as it is a 2005 computer, but two keyboards and three batteries later, it still runs as new.

God, how I wish there were new 12" laptops in 4:3.