Would you use it at home mainly? or on the go?
Because if at home, you can build a REALLLY REALLLY REALLY great computer for a price, that even a modest laptop couldn't compare to.
If you're on the go, then laptop.
But if you can handle just using it at home, get one built and you'll get a really crazy, sick (good thing), computer.

As long as you go AMD dual-core, for a chip.