Hi, I was wondering if anyone could give me advice about buying a macbook which i will mainly be using for video editing. I need to be mobile so I know I want a laptop. I am thinking of buying the Mac Book Pro 15-inch: 2.2 GHz. 1. I'm not sure whether I should by the model as is or I should invest in upgrading the hardware? 2. I hear there is a new cable/hard-drive which is recommended for heavy work like editing. Does anyone know what this product is called? 3. Any other tips/hints will be much appreciated! I have been procrastinating with this investment for over a year, so please go easy on me, the simpler the better. I live outside the US and have a friend who is there for the next week and will bring it back for me. So this is my opportunity to get apple products for the lowest price. Many thanks!