depends if you want to move around with it,

if so I'd get #2 and then an extra external monitor to use when at home/in the office.

Otherwise the larger HD screen on the 17" is a boon. But it's a pig to carry around everywhere.


Also, Mac's a re pretty similar in price spec for spec when I bought mine, only £50 difference between the mac I bought and the Dell *shudders* equivalent. They also have far fewer issues, and they crash a great deal less!