gdiva,
that 14" screen is not much bigger than a netbook's 12" screen. You might wanna bump up into the Dell Studio line and check out the Studio 15.
Here's a 15.6" screen size.....
view link$600 at dell.com.
As for brand preference, you're gonna get opinions all over the lot, so you'll just have to make your own decision on that one. The only thing that "most" people never mention are Gateways and eMachines, and there might be a reason for that.
I'm partial, I have a Studio 17 that's been great but it's not used like a road warrior would use it. For you, for light duty stuff and browsing, and no need to run Excel, Powerpoint or Word simultaneously, the $5-600 range should be fine.
The stuff under the hood on that Dell at Best buy is older technology, which means "cheaper", "slower", BUT also, "tested under varying conditions by many people all over the world"
Pete