iSmith,

not sure I want to be in the middle of this but here goes. Just checked the Dell site for the M1530, looks like a nice machine.

Rance already stated the reasoning for purchasing an Air, an as your Dell machine weighs in at 5.78 lbs8 (2.62 kg) (according to Dell's technical specs) the M1530 doesn't fit the bill.

 From my point of view, I wouldn't fancy holding >2Kg of laptop one handed whilst working on a remote site for example. As I've said previously, you need the right tool for the right job.

Enjoy taking delivery