Just remember one thing when buying a laptop.. you cant upgrade them after you buy them..
generally if you are going to get one, get the best you can afford so it will last a while.
Computers are easy to do cheap because you can updage components thru time.. but laptops.. well....
Good luck. Go to Best buy or Micro Center and play with some of them, get a feel for what you are buying its not something you can return if you arent happy with it.