Pioneer
Veteran
Personally I carry extra film or extra cards on the road and do my developing/scanning/downloading/editing when I am home. But, my Lenovo Thinkpad X131e is very handy on the road and runs Lightroom easily. I just upgraded to LR5 and it doesn't seem to have a problem. It weighs in at 3.5 pounds, uses the AMD 1200 chip, has 8GB RAM on board and uses a 500GB hard drive, though you can get a 128GB SSD if you want. It has been designed for college student use so it is reputed to be a pretty tough little laptop. Mine has held up pretty well so far. My primary image storage and backup is on 1TB Seagate Free Agent GoFlex Hard drives. I have 3 of these little beauties now and they hold up well and are very compact.