Actually, the new Mac Pro won't be able to help us at all, because we need CUDA driven cards to do what we do. The AMD/ATIcards are completely useless to us. We have started doing GPU rendering using the Octane Renderer out of Cinema 4D. Amazing realistic results. We bought 2 giant PC's with 4 Titan cards each in them, but we are Mac people and wanted to be able to work on our Macs using Octane at decent speeds. So, i present to you... 8 Core Mac Pro with 2 Titans in it. These cards are Plug n Play now with Mavericks as far as compatibility is concerned. The only issue i have seen is there is no apple logo on startup anymore and translucent menu sometimes acts odd (i turn it off anyway). You do need an external power source to run the Titans, but this machine (and one other just like it) is a monster for GPU rendering (and yes, even games) and here are the two PC's if anyone cares. Win8 is just dumb, but these machines work great, even if they look ridiculous. And don't let anyone tell you all PCs are cheap. These things were $11k a piece. Yes they are faster than our Macs at just about everything, but Win8 is just disgusting to work on after being a Mac nerd for the past 28 years. So, i only use these for when i have to render something.