So I'll be entering into the co-op computer science program at the University of Waterloo in September. I currently own a 2.16 GHz Mid-2007 White 13" MacBook that has 2.5 3 GB RAM and a 320 GB HD. For the most part, it still works fine, but the fan ramps up relatively easily, the battery life is shorter than what I'd like (~3 hours typical with WiFi on), and many graphics and animations are stuttery. This machine has also seen its battery been replaced 3 times, hard drive twice, and top case once. I have an external monitor on my desk at home, so the small screen size doesn't bother me too much right now. I've wanted a new MacBook for some time now, and since I won't be able to bring my external monitor to residence, I've been looking at the base 15" Pro (~C$1950 with student discount and tax) as a possible replacement. My two main concerns are: The cost is a little high, but my family is quite averse to purchasing refurbished products, even if they are from Apple. Is the cost going to be worth it in the long run? For many general tasks, my current MacBook is still relatively competent (albeit a bit slow), but it's not like it would suddenly decide to stop working if I purchase a new one. What should I do with it? Give it to a family member? Sell it? If you have any advice, I'd really appreciate it. Thanks.