So, I just got a MacBook in August for $1500. It's the 2.4GHz black one with 250GB drive. My question is this: is it worth the hassle to sell this one off on either eBay or Craigslist and to get this new MacBook? I've been looking around and can tell only that there is a new trackpad and that it's lighter. Can anyone shed some light on what else has been updated? Thanks everyone!