I originally had a mac mini 2012 and then started to do some gopro video edits, filming at 1440@60fps and then editing was taking time with the mac mini... so i got a 2009 cMP and then got the bug... i am now running dual x5690's with a GTX Titan, 48GB of ram and 500GB of PCIe SSD. It screams through DaVinci now, i also use autodesk fusion (like inventor), Autocad and running a 4K SST screen for RAW photo editing. I have a 2013 rMBP which is my portable piece of kit, I've tried DaVinci on the rMBP and it brings it to its knees...