Asks everybody to recommend a model of good portable computer to me, thanks!

I must attend the university, recommended one section to suit my portable computer (notebook), the price in 4000 ~ 10,000 different ~
Right, does the notebook bring to where to be possible anytime and anywhere to access the net how to make wireless? Also the belt telecommunication company opens the wide band same to open likely?
Thanks replies ~~
Buys Dell or the IBM notebook post-sale service is quite good, the wireless surfer handles very expensively in the telecommunication ha