ive got the inspiron 8600, and if ur using it for only documents, thats already overkill....i use the inspiron 8600 for everything that my other computer does, this includes very intensive stuff, like movies, games, graphics if u dont use ur laptop for these things ever, im gonna feel sorry for ur geforce fx 5600........
i recommend if you dont use your laptop for these things, that u go for a much lighter one, as this laptop is pretty heavy and bulky, but is very good for performance........it is so big, that u need an XL computer bag to carry it around safely... i would recommend a small macintosh laptop, as its very stylish and can do basically everything a normal laptop can do, or another laptop of the dell series, not the inspiron ones though....just cause of the way your gonna use it, is just a waste of money as you wont be using the laptop to its full potential, save the money and buy ur self the textbooks u need instead.....