Alright, I'm buying one of the new MacBooks in the next few months and I'm trying to plan...I apologize for the long post... I currently have an Early 2009 (I know, I know!) iMac and a regular old 2TB external hard drive. A partition on that drive serves as the destination for my automatic Time Machine backups. The other partition holds my movie and TV files (music is still stored on the iMac). This iMac also serves as a kind of "media hub" for my house. I keep it constantly on so I can access my iTunes Library from my AppleTVs. So there's the history. I'm planning to get the new MacBook Pro and keep the iMac (so it can still function as my media hub...unless you all think the MacBook can handle that task). My end game: 1. Make sure I still have easy/seamless access to my iTunes library from the AppleTVs in my house...even when the MacBook is shut. (I've never had a MacBook, so I'm not sure how HomeSharing would work but the gist is that I don't want to have to grab the laptop and leave it open for HomeSharing to work.) If the MacBook isn't going to be good for this purpose I can keep the iMac for use as a media hub but that brings me to goal #2... 2. I want my music/movies available to me on the MacBook for when I travel or otherwise just want to watch or listen on that device, but I also want to preserve the ability to easily call up my music/movies via HomeSharing. Ideally I'd love to store all my music and video on an external drive with cloud access (like the WD My Cloud) or on GoogleDrive/Dropbox so I'd have it not only at home on the iMac and AppleTVs and on-the-go with my laptop, but also at work (on a desktop Windows Machine). What are your suggestions here? (While this is #2 in my list, it's probably the most important to me.) 3. Make sure my MacBook is being backed up regularly via Time Machine. (Enlighten me on how this works with a laptop? Do I have to make sure I plug the thing in to power and/or the external drive and then leave it open to ensure the backup runs? Again, never had a MacBook so I'm unsure.) So those are my three wishes and any advice/expertise/experience would be helpful. (Preferably I'd like to find native solutions, but I'm not opposed to 3rd party tools if they're reputable and not outrageously expensive. I've used both AirVideoHD and Plex to watch my movies on the iPad and AppleTV when HomeSharing has acted up.) Thanks all!