Do not take HP. Heat up much, buggy video (also depends on the build), I had one constantly problems with it (price category 35K+).
ASUS everything, solid, almost indestructible.
I would advise the intel i5 processor + 4 Gb RAM + integrated video card DEFINITELY Windows 7. Not under any pretext do not take c Vista.
For a child all the same take, and not in the office to print ;)
If the configuration is "nambucca", then the peers will crush you, because the "not subject" to be.
And yet, you really need a laptop? The price is higher, the characteristics below.