Hello I currently have a Mac Pro with 2 x 30 inch Monitors. I want to replace the old graphics cards (XT1900) and replace with a single with EVGA GTX 680 , which uses both available internal power supply sockets. 1. Can this graphics card support 2 x 30inch Apple Cinema displays running at 2560 x 1440 pixels using the DVI ports? Or will this need a dual link DVI adapter to supply the additional power to the monitor? 2.If so would it be better/more cost effective to fit an older graphics card to power the second monitor. The dual link DVI adapter seems to offer poor quality. A secondhand older graphics card that is powered only off the PCI bus might be cheaper and better quality. Does anyone here have any experience of running 2 30 inch Apple displays with their GTX680? Any ideas and suggestion will be greatly appreciated.