I don't think anyone can suggest something without knowing what you will do with it. Research on the web, office stuff, web design, photoshop, etc.?????? Until we know that we can't rec. a good match. If you want sheer speed it would be a certain one, if you need to multitask simple items you might want a larger screen, if you want portability then iBook or Powerbook,etc. Please give us more details and also about your future portability needs which you hint at in the original post.
It is kind of like saying which car is best for me...Grand Cherokee or hybrid? If we don't know what you will use it for we can't make a good rec...except for our preferences based on our needs and wants.
Johnny