Hetoreyn, that is what I am thinking. To use my current PC MIDI, a PC slave (that was my main slave originally) and a new Mac Pro with the flash memory as a second slave. With that system, and 64gb of RAM on the Mac Pro, you could probably do large orchestral setups without any glitches. (such as a glitch I recently had - a large group of instruments suddenly doing extreme velocity crossfades, all of them separately - it almost blew the entire neighborhood's power supply.) Partly because I like the MIDI sequencer I am using, but also because it will maximize the sample performance which is my main interest. Also, apparently the flash memory is faster than SSD.
I wanted to ask cm if he knows whether it is necessary to store samples on a separate hard drive on the new Mac Pros. I am thinking it would not make any difference because it is all totally RAM? So you could you have a single terabyte flash drive with everything - OS, MIR and samples?