I wonder if I've been thinking about use of the nMP's (or iMac's) internal PCIe SSD storage the wrong way, at least for my situation. My current setup is an MP3,1 with the following drives: * 4x1TB HDD RAID10: All data * 1x256 SSD: OS/Apps/Mail, and recently moved my Win7 VM that I must run daily * 1x500MB HDD: Boot camp I back up to a 2TB Time Capsule. I've got an nMP (and an iMac late 2013 i7) on order. When I ordered each, I chose 512GB SSD for internal storage. My rationale was I'd give myself room to grow a bit, and I'd use that internal storage for OS, Apps and the VM. I planned to add 2-3 separate 1TB SSDs for data, connected via TB/TB2 (possibly using 2 in a RAID0 configuration for photos and most frequently used data -- still photog here; video is minimal). New config would be something like: * 512 internal SSD: OS/Apps/Mail * 1TB SSD (or 2x1 RAID0): photo library * 1TB SSD: other data Now I'm wondering if I have been thinking about this the wrong way. Maybe I should be using that internal SSD, maxed out, for the stuff that might benefit the most -- the large photo library. Would it actually make more sense to go with 1TB internally for either nMP or iMac, and then use 2x256 SSD (TB/TB2) for my OS & Apps? Although I'd pay more for the internal storage, I could just get a 2nd 256GB SSD to set up the RAID0 for OS & Apps. I'd need a 2-card TB/TB2 enclosure. I'm open to any thoughts on my setup, drive configuration, etc. I have 2x1TB Samsung 840 EVOs sitting here unopened (+Tempo Pro card), along with an OWC Accelsior 1TB. Not yet sure which is the better way for me to go with that choice. Tempo Pro is probably a bit slower but allows me to keep drives separate, RAID0 (or RAID1), upgrade drives in the future, etc. Thanks!