So I currently have the late 09 MBP model, and I don't know if it will be worth spending the money on a new MBP. I use my MBP mainly for surfing the web, iTunes, iMovie, iPhoto, Pixelmator, Handbrake, and play a couple of games like "Angry Birds", nothing graphic intense. My MBP 09 still works like it did the day I bought it. So, do u guys think I should upgrade or should I just keep the one I have now. Will I see any difference in speed???