Pete would like to mount a Mac monitor on the wall. Leo says a VESA mount is the best and Leo recommends Ergotron arms. That's what TWiT uses in the Brickhouse studios. He recommends bringing his monitor back to Apple and requesting a model with the VESA mount. Leo also says that Dell's 5K monitor is great for the same price. It may be worth going that way.
Can he just route the Mac Pro through the new 4K iMac? Leo says no. There's special circuitry of the iMac Retina that moderates the bandwidth, so it's not possible to daisy chain the 4K signal.