I recently purchased a 2.6GHz i7 Mini with the 256GB SSD upgrade, and it's due to arrive shortly! Also on their way are 16GB Crucial RAM, a 256GB Samsung 840 Pro, and the OWC Data Doubler Kit. This machine will serve as my home desktop for general use as well as the center of a modest music production rig. I mainly use software synths and sampler instruments, though I do some light recording. I intend to use one drive for the OS and apps, and the other for sample libraries, project folders, recording, etc. So, which drive to use for which purpose? I've read that the OEM SSD in the Mini is essentially a Samsung 830 with modified firmware, and I expect the 840 Pro to be quite a bit speedier. That said, I don't know how noticeable the speed difference would be... Whatever relative speed advantage may exist, would that be better put to use by a system drive or an audio data drive? Additional considerations include garbage collection (perhaps not relevant?), and ease of service under warranty should I want to pop out the 840 Pro and bring the Mini in to Apple. In hindsight, I realize it might have made sense to order the base HDD and a pair of 840 Pros if I'm willing to crack open a new Mini in the first place, but something was attractive about the native support of an SSD, so I pulled the trigger on that before I even decided on the 840 Pro. I realize also that I might be splitting hairs here, and it's going to be fantastic either way. Thanks for your thoughts.