Quick question: first, I work on corporate videos HD 1080i and eventually 4K in a year or two. I am planning on purchasing a mac pro (hopefully an update is coming next week) and are looking for a 2x thunderbolt enclosure to be used for video editing-processing in RAID 0 for the scratch-processing disk. I have found something I like which is a RAIDON SOHOTANK ST2-TB Thunderbolt2 enclosure for about $399 and will put in 2x Samsung 850 SSDs for speed at RAID 0. Should I go with 2x SSDs or 2x 7,200 HHD's? My current footage needs will fit on RAID 0 SSDs, but not sure on the performance differences besides initial reading speeds of the SSDs. I am currently using 2x seagate thunderbolt external adapters and using it in the software RAID 0 in OS X Yosemite since OS X EL Capitan still has issues with the disk utility app and does not look like they will fix it. Also...If Apple does not come out with an updated mac pro next week (or soon) I will need to purchase due to my current work load, so I will have to 'settle' with thunderbolt 2 and the latest mac pro for some years. Yes, the current 2013 model is great and the thunderbolt 2 speeds are very adequate..but the current tech in the mac pro is aging quickly (2013 and older) and for the cost vs. the aging tech...I am a bit concerned. Thanks for any advise.