Finally succumbed...

My Dell Inspiron 8600. Everyone said it would not last. Well, it has been 7.5 years and it's still soldiering on, though not quite as spritely as it used to be. Converting an 18 megapixel RAW file does require a fair amount of patience. But its 1920x1200 pixel 15.4" screen remains the ultimate notebook screen resolution to this day. It's still a champ.
I finally succumbed to the allure of Mac and ordered a MacBook Air 13" with the i7 processor option. The Dell will be retired from active service.