Building a Davinci Resolve color grading suite on a Mac Pro 12 core with 24GB of RAM, Quadro 4000 GPU and Blackmagic DeckLink HD Extreme 3D+ video capture card. Noticing an incredible increase in realtime playback performance compared to Apple Color. The system just screams with multiple secondaries. Taking whatever you throw at it. The power of node based color correction is opening such a new level of creativity. Really amazed by the powerful automated multipoint tracker, qualifier and realtime render outs to Apple ProRes 4444.
Started a thread over on reduser detailing my experience so far: http://reduser.net/forum/showthread.php?t=54978