I just got my 15 inch rMBP base a couple of days ago. And I must say I'm enjoying it. However I need an external drive solution that works well with my rig and this Macbook. I'd like to store all of my files (mostly music)on an external drive because I do all of my downloading on my rig which stays on 24/7 in most cases. I really don't want to leave the Macbook on when I'm not using it. So are there any drives that stand out as better than others in that market for what I want to use it for?