So I've got a little bit of money to invest in some tech, and I want to upgrade my computer. I've got a mid-2009 MBP and still like it, it does most of what I need without complaining. The question I have is should I sell it and upgrade to the next MBP when it comes out, or get an SSD to replace it's 500GB HDD (which I can turn into an external easily). What will provide me with a faster day-to-day computing, file transfering, some light video editing, etc? Thanks!