Multi system Project? With Synergy.

[Johnmakuta]

I have been planning this build for a long time but I had originally just been going to use a KVM switch I had laying around but after seeing the video on Synergy that sounded like a much better setup. The point of this project is to build a chassis that will hold multiple systems within it. Right now I was planning to stuff my X99 and old Z97 into it and just upgrade the graphics cards. I was planning to have the Z97 be a Hackintosh and the X99 to be a Linux/Windows dual boot. The usability point of this project is to build a single PC that can do be used to do multiple resource intensive tasks at the same time. Doing this with a multisystem setup may not be power efficient but 3 5820Ks are definitely better and around the same price of a single 5960K (this is not what I'm doing but it's the best way I can explain it). What I realized is that I might need 3 systems instead of 2 to complete all the tasks I wish to do. There's also the fact that a triple monitor setup looks way better than a 2 monitor setup. I have an old FX-8320E but I'd like to avoid stuffing that beatbox into this system plus I was saving it for an HTPC. Here are the ideas I thought of:

• get an ARM based dev board and run Linux (advantage is lower power and the price will range from $35-$600) 
  • the only think I would be worried about is that it isn't x86 so it won't work as well
• buy an mITX Mobo for my Z97 and an mITX with Z170 or something but I don't like that because it will require another powersupply clogging up this already stuffy system.

any other idea are well recieved.