I have a dilemma. My logic board need replacing, among other things, for around £700. I have a late 2007 2.4ghz MBP with added 4GB Ram. Im not sure whether to pay the £700 to fix it or put that money towards a new unibody MBP with similar specs. Is the unibody with the new graphics card and new screen worth updating to or is my current MBP just as good? What do you guys think? I need help in making a decision!!