Is the the $800 dollar upgrade from 320GB 7200RPM to 256GB SSD worth it? I understand boot times, load times and reading/writing to the drive will be a lot quicker, but how about performance during High Def Movies or Gaming (actually being in the game)? Do any of you see prices dropping in the near future and space increased by a 3rd party SSD drive? Thanks for the help! This the last thing I'm deciding on before I place my order for the new 17" MBP!