Fujitsu-Siemens laptops are usually the cheapest, but not the worst in quality. They can provide an amazing price/quality ratio when the price is low.
Alienware has probably the best laptops in the world, and Asus has somewhat good one's too but they are quite expensive, not as expensive as Sony's VAIO series though.
Lenovo ThinkPad T61p is also an interesting choice although it's probably meant to be an office laptop. It has a very good graphics card: nVidia FX 570M (it's almost as good as a GeForce 8800 GTS, and runs all modern OpenGL games (and of course all DirectX 9/10 games also, but I don't recommend to play those games)), and the price is lower than the Alienware's or Asus'.
Toshiba used to be the best in laptops, but nowadays they have only 1 good laptop, it was one special model of the Satellite series.
Acer laptops is a keep your hands away thing, they are slightly cheaper than quality laptops, but they are so horrible quality and break from every place they can and even more.
The only bad thing you can do when chosing laptops is to buy a laptop which has no nVidia card.
Alienware has probably the best laptops in the world, and Asus has somewhat good one's too but they are quite expensive, not as expensive as Sony's VAIO series though.
Lenovo ThinkPad T61p is also an interesting choice although it's probably meant to be an office laptop. It has a very good graphics card: nVidia FX 570M (it's almost as good as a GeForce 8800 GTS, and runs all modern OpenGL games (and of course all DirectX 9/10 games also, but I don't recommend to play those games)), and the price is lower than the Alienware's or Asus'.
Toshiba used to be the best in laptops, but nowadays they have only 1 good laptop, it was one special model of the Satellite series.
Acer laptops is a keep your hands away thing, they are slightly cheaper than quality laptops, but they are so horrible quality and break from every place they can and even more.
The only bad thing you can do when chosing laptops is to buy a laptop which has no nVidia card.