Hi I am not to sure what type of laptop I should be buying my 2 year 9 children for next year. I want something that it going to last them throughout their college years (is that even a realistic expectation?) I don't know what subjects they will be taking once they get to year 11, so it's hard to know what their requirements are going to be. I do know that I want it to run quickly, be light and robust as they have so much else to carry as well. It doesnt have to be touch screen. Budget obviously dictates as I will be needing to buy two. Please help.