I suggest you to buy kind notebook of Toshiba, I have one, and I have used it for more than 6 year, and it still useful and find. I think the latest type of Toshiba Notebook is better than before.
hp pavilion dm4 is a great laptop to buy. 14 inch core i5 minimum 4 gb ram expandable to 8gb very lightweight and good looking. budget-friendly will be buying it some months later.
I think you should to buy MBP15-inch: 2.2 GHz or Alienware m14x. It has Intel advanced-N WiFi Link 6250 a/g/n 2x2 MIMO Technology with WiMax, Audio Soundblaster X-Fi Hi Def Audio - Software Enabled. It has also Intel HD Graphics 3000.