I have to point out, that buying any sort of high end Intel processor at this point is silly what with Nehalem coming out in October / November... =\
And rated battery life is never correct. With the power draw that that laptop will have, you'll be looking at a seriously chunky battery for 4 hours.
Me, I've just spent £400 on a whim for an Eee with a VX Revolution, WD 250GB Passport and 2GB RAM for it, so I can't really say anything about dodgy spending.