Yesterday MacRumors helped me pick my next Mac. Today, I'm looking for a solution for storing my photography and video libraries. I'm a photographer and have been doing some video lately. Yesterday I bought a 27" iMac i7 3.4Ghz with 2GB graphics and a 1TB fusion drive. Aperture is just screaming on this thing. The one bottleneck with my new iMac is storage. I have about 4TB of photos and video in archives on multiple drives and my working library is about 300GB. I could have paid a little more for a 3TB Fusion drive but I'd still have the same problem: having to regularly go through my library to archive photos I don't plan to need on hand. I'm trying to avoid this and just have one Pro Library (including all the archived images) and one Personal Library. So I'm leaving that 1TB for everything other than photos and video libraries. Which means that I need an external drive for this purpose. I've been looking at the Drobo but will having my photo library on an external drive slow down Aperture? For Aperture experts: How do I get around this? Can I have my library with previews on the iMac's Fusion Drive and then the master images on an external drive? For storage experts: I want to have local redundancy to protect against hardware failure but I also want to have a drive that I can store off site. Does the Drobo permit this? If I had 3 HDD's in the Drobo, can it use two to mirror eachother and then one to carry off site?