The ARRI ALEXA is a very cool camera. Out of our budget range at the moment but we can still dream. And that dream becomes very real if you want to get an idea how it operates as ARRI have come out with the ALEXA Camera Simulator (ACS-1).
Another card gets launched today, this time the beefy $1,199 NVIDIA Quadro 4000 GPU. With FCP, Motion & FxPlug plugins using the GPU, more GPU power means faster renders. There are speed references with FCP mentioned on their site, but be warned this model will not fit some old MacPro's.