Hi, all: My new iMac 5K is coming in the mails over the next week, and I've had a thought on the Fusion Drive. I will use this machine for theatrical projection design, which needs very high file read speeds to look good. I got the 2TB fusion drive, so there should be a 128GB SSD that would accomplish that pretty well. Thoughts? I just figure that it would be nice to always know where the files are physically so I don't have to worry about what is where and when.