I've run out of space on my MBP's internal drive and have been using a couple of external HD's to store my aperture library on, which I duplicate nightly using SuperDuper. I've only really ever seen this as an interim solution until I had time to look into something better. I had my eye on a Drobo. Their simplicity is a big selling point. Just chuck in some HDs and it will manage your storage for you. No need to worry about matching capacity/speeds etc. However, I'm reading quite a lot of negativity around both performance and reliability so I've gone cold on the idea. This lead me to reading up on QNAP and there NAS solutions. After sifting through their many many products I has settled on a 4 bay NAS enclosure (TS-419P II) but then I've since read that Aperture doesn't support storing your library on a NAS. This latest set back has swung me back round to Drobo (firewire) and I've also been looking into RAID DAS enclosures, specifically Startech ones. So, my question to you guys, is what solution would you advised I go for? What are others using? I want something which will protect me against drive failure where I can store my working Aperture library (not just vaults). To further add to my confusion I've also read a little about iSCSI and that it can present NAS as DAS. Can anyone shed any light on this? I should mention my MBP doesn't have thunderbolt.