ROb,
I did see the thread and will begin the process of moving out of external SATA drives to a small Pegasus when they are readily available. 4K monitor may be a bit away as Eizo or NEC lower their entry point and offer a smaller size....no room for a 48 on my desk.
I sold my RED EPIC last year....do have a small amount of 4K footage to start with and will probably look to Sony for a reasonable little 4K Camcorder ....
stepping back from a short foray into video, just need something for motion in landscape.
I am convinced that the 6 Core MAC will be best as it has the better of the graphic chips - probably will stay away from the 8 Core as video is a small part of my interest.
Next year should be interesting....
Now for a decent calibration system for 4K ... wonder if my i1 will be adequate.
Bob