It turns out that the AppleCare's 'Next Day' service with DHL took two days. When I posted the previous entry: DHL to the Rescue ... Maybe, the package was actually still in Houston. Go figure ...The repair slip (all of which was of no charge to be because of my trusty AppleCare Warranty), indicated that a few components were switched out. Indeed, it does feel a bit different, but the second I cracked open the computer and turned it on, it started to buzz again, albeit, not as loudly. I was disappointed, but at the same time, I am extremely glad I got my computer back safely. It came with a free carboard box and foam packaging as well, which is always a plus.
Edit: Check out the box from yesterday's POTD.