I am an all around multimedia artist (filmmaker/musician/graphic designer). Currently I have a Mac Pro Tower that takes care of all my high-def video editing and audio production work. This next purchase is for a laptop system that can take care of my basic stuff or when I need to work on the road. My budget currently allows for either a: 1. Brand new 2.2 GHZ Macbook with 250 GB drive, 4 GB of memory, and AppleCare Extended Warranty. Or A refurbished 2.2 GHZ MacBook Pro with 120 GB drive, 2 GB of memory, and no extended warranty coverage. Which should I do? Any advice?