Thanks, krd, great suggestion, I'll look into that.
JarryG, I know you don't find my solution optimal, but I'm running from a system that I built out of servers that an employer let me hijack from recycling. My goal for my home system is to have all my major computer equipment housed in one rack in my basement.
I am trying an experiment with giving all the kids tablets with wireless keyboard and mouse and a Windows VM and moving towards a cloud infrastructure (View and other VMWare technologies are coming, but I'm starting slow). Anything that the kids need Windows for, they can log into the VM for. None of my kids is into graphics intensive games, just Minecraft and Roblox, and sometimes WoW. The ESX servers I'm running the VMs from are 8 core 3.2 ghz systems that can spare a lot of clock cycles for software rendering if needed.
Setting up desktop systems just for giving graphics to desktops defeats the design of my "home datacenter", but if I can get some GPU cards either as PCI or Mezzo cards in my BL360 servers and follow krd's suggestion, that might work perfectly.