Yea like toxiclows says, more info would help a lot to help you pick a laptop. Nowadays there are a ton of wireless hotspots across most cities, including starbucks and most schools/universities will have wireless internet access. So I'd say that you probably wouldnt have to get a plan from a cell phone company for internet if youre in the city, or atleast try with the laptop in the city and see how often you need internet/cant get it. As for a brand of laptop I would try to stick with either a namebrand(dell,hp,acer) just for ease of warenty and service. If you buy a cheaper laptop you might not be able to get it repaired easily or have longer waits for it to come back. Lastly another choice is to go to best buy or some other big box store and get their extended warrenty, as that helps. Basically I'd say when it comeos to laptops, the most important thing is how easily you can get it fixed, serviced, or whatever. That usually comes with a name brand.
And also what will you use laptop for? If you plan to watch videos/dvds you might want a larger screen(more money), or if you want a purely mobile laptop with minimal tasks you could get one with a smaller screen and probably cheaper/less extras. Hope that helps, but more info will help us help you : D
-Sulk