What are the minimum requirements of a laptop for gaming?

You won't be playing any games on that laptop besides Pinball. I suggest you look at the more expensive laptops ranging in the 1000-2000 dollar range. They usually have i7 CPU's and some good ATI/Nvidia cards. Do not get an integrated GPU if you want to game. I only know about Nvidia GPU's, so I can tell you that the GTS 250m, 350m, and 360m are the minimum you'd need to game. And they go all the way up to the GTX series'.