I currently have a 15" MacBook Pro. It is used for heavy photo and video editing & school. Which idea is better? or should I do something different all together? Option 1: Remove superdrive (which I never use) to save weight Option 2: Remove superdrive Replace 500GB hard drive with 128GB SSD Put 500GB Drive into a caddy where the superdrive was Option 3: Do nothing, leave it alone Suggestions?