I'd like to build a Resolve for grading HD 1920x1080 content (and BMD Pocket Camera in the future) on a Mac Pro Early 2009 quad-core 2,66hz with Mountain Lion 10.8.3 with 4x4 Go of RAM.
The only graphic card is, at this time, the Nvidia GeForce GT120 in PCIe - Slot1.
What second graphic card do i need to buy for GPU ?