Get the new iMac 5K at B&H Photo and see the Lloyd’s computer gear wishlist. Save money on 32GB or 64GB OWC memory (about $400 savings vs Apple!). MPG recommends this iMac 5K: 27" Retina 5K Display, 4.0 GHz Intel Core i7 (Skylake), 1TB Flash, 8GB memory, AMD Radeon R9 M395X GPU (4GB GDDR5) + 32GB or 64GB OWC memory.
The color gamut of the iMac 5K is the best ever delivered by Apple, covering the DCI(P3) gamut. That is a very good thing for iMac users—well, sort of: 99.99% of camera users (including iPhone users) shoot in the sRGB color space (derisively aka “sad” RGB). Shooting in sRGB clips off all the colors one might hope to see on the new display!
There is also one glaring issue with the Apple-supplied display profile...
Read more: iMac 5K (Late 2015) vs Mac Pro: Color Gamut