Hi! I have just got an offer at work to take home one of our Mac Pro's. I have 2 models to choose from but I am unsure of what model is the best one. First one is: Mac Pro 3.1 dual xeon 3.0 GHz - 8 cores 10 Gb RAM - 800 MHz DDR2 Second one is: Mac Pro 4.1 single 2.66 GHz - quad core 8 Gb RAM - 1066 MHz DDR3 I also have the option to choose between two graphic cards. nVidia GeForce 8800 GT or nVidia GeForce GT 120. I'm going to use the Mac for compositing, color grading and some 3D modeling. Please help me do the right choice.