I have a Unibody MBP (lowestmodel) and doing some video editing (avchd) on it. But the 2gb ram and slow hdd make Final Cut Express a bit sluggish, so I'm thinking about upgrading it. Probably a 500gb 7200rpm drive (got external storage for longer term storage, so size isn't that important) and upgrade to 4gb ram. What would you advise? Mind, speed is the factor!