Three Guys and a Podcast are reporting that the next-generation MacBook Pro will likely arrive in April 2011 with a new design inspired by the latest slim-line MacBook Air. That means that the high-end laptops will probably dispense with spinning drives altogether and come equipped only with solid-state drives of up to 512GB capacity. If you haven't yet finished ripping all of your CDs and DVDs, you'll want to complete that task before migrating to a new MBP because the int