Hello, I am new here and looking to get a upgraded 5k iMac. I am set on the higher processor and video card and will upgrade to 32gb of crucial ram myself, but I am torn between Fusion and Flash storage. Should I skip the 1TB Fusion drive and take the 256gb Flash storage (at the same price) for faster read/write storage; and if I did, can I add external Flash storage at a later time with the same read/write performance? The system will be used mostly with Adobe Creative Cloud software, so I would like something that can handle it, plus the screen real estate would be a big plus. It's also been awhile since I've purchased a computer, and from what I've read the 5k shares most of the older iMac internals. Will there be a big change soon, like within the year and should I wait? Any info would be appreciated, thanks.