|For what you want to do get a laptop. Netbooks lack cd/dvd drives.|
The separate/dedicated graphics card is worth having too. Athough these days shared graphics memory isn't quite the issue it once was - as most systems now have large amounts of RAM installed... (mainly to service RAM hungry OS of coure - and windows-7 is certainly that...?)
On the general market... there's not a lot between the current crop of laptops either; and I doubt most users will really spot the nit-picking differences in general use?
Avoid the Celereon processor though; go for a full blow/proper processor - Celeron has been described by some a denatured proper processor; is seriously cut back in terms of performance...; and for games make sure you have adequate RAM...
Cost is obviously a factor of course, and you get more for the pennies with a laptop?
Size of screen may be an issue for you; netbooks being smaller overall - but still not impossible for general viewing of movies etc. (not sure about games though)?
General size and bulk means that anything over say 15ins wide-screen (standard laptop these days?) is going to be a bit bulky to transport. And netbooks obviously much smaller...
I'd go for the laptop proper (15ins screen) - unless you fancy to go for a MAC... and get the 13ins MACbook student or pro versions...? But then MACs cost more but you get a better item?
You're going with Windows-7... Be sure anything you have in terms of older kit - printers etc... will work with it; drivers are not so readily avaialble for much of the legacy/older kit out there... Which is why many are sticking with XP and/or setting up a dual-boot scenario (having first confirmed the new kit will have requiste drivers for XP)!
Incidentally the Windows-7 starter installation is nothing more than a demo version overall. You cannot change much - if anything at all... To get it to a more functional/working state you have to upgrade it and also usually add more RAM - at least that was the story at Frys etc. a few months ago... Typically one is adding another $100-150 or more to the bill to that end...?