The faster we add movies, songs, TV Shows, etc. to our iTunes library for our AppleTVs... the faster we run out of HD space. When AppleTV was released, I'm guessing 500GB seemed like a TON of space to most of you, and now... not so much. When you started running out of space on your Mac, what long-term external storage solution did you switch to (or plan to switch to)? List the hardware you've purchased. Post photos and/or pricing information if you can. What advice can you give to others? What would you do differently? If you could design the ultimate storage setup for your ever-expanding iTunes library... what would it be? UPDATE: For those of you intending to move your iTunes library to an external drive like many have done here... I recommend you start with this very helpful resource by iLounge. For Apple's less in-depth, less thorough, less explanatory version, click Here. Here are a few other resources you may find helpful: RAID stands for Redundant Array of Independent Disks. Many users are utilizing RAID to add redundancy (backed up) to their data with "mirroring" RAID 1 or speed to their system with "striping" RAID 0. Drobo is mass-storage device many users here are using to store their iTunes content and have enough room to grow in the future. Drobo is a type of RAID enclosure that utilizes something called UNRAID. UNRAID has many of the benefits of RAID 0 and RAID 1, and more closely resembles RAID 5. Drobo is a (relatively) inexpensive RAID box which lets you add up to 4 SATA hard drives at once. Each drive is backed up 100% so if you lose one drive, you can replace it and keep right on trucking with no data loss. The primary negative of the drobo is that it uses a proprietary system which would require you to buy a brand new drobo in the event that something went wrong with the first one. The hard drives it uses can not be read by any other device. The drobo website has many helpful videos to give you more information. Every mac comes with a program called Disk Utility. You'll need it to do many of the things you'll read about in this thread. It is especially useful for formatting hard drives and creating RAID systems with multiple external hard drives. With it, you can obtain similar functionality to a drobo, without the expense of purchasing all new hardware. UPDATE #2: Since a few others posted theirs later on in this thread, I thought I would make a sketch of my own potential setup, which should serve as an example of what's possible.