Hello I'm really struggling to find a long lasting laptop.....Most of them seem to be loosing their performance in a year or two maximum. I'm ready to splash out something in the range of 600 pounds....looking for 4 GB ram Above 250 GB and a very fast processor ....possible the Core i3. I dont know whether I choose get one with Windows 7 or just stick with Vista. Dell or Toshiba (I'm not too keen on HP/Acer and think Sony are over priced ) Or is it that sort of time to just get a Macbook....how good and durable is it ?? I know it's very secure which is good...but that about it. You advice/suggestions would be very much appreciated ...Thank you.