digg_url = 'http://digg.com/apple/MacBook_goes_unibody_available_today'; Like a bat out of hell, Apple has just shuttled a new, unibody MacBook in the gadget world's direction. The new model -- which looks like an arctic, glossy version of the familiar 13-inch MacBook Pro line -- will be landing in stores today (yes, today), with a familiar price tag: $999. In terms of changes, besides the new, high-test plastic casing (built in the same fashion as the aluminum MacBook Pros) the 1