I am in the final steps of getting my research done for a Mac Pro purchase. I plan on doing AVCHD and HDV editing in Final Cut Studio 3. This will also be my main machine. First question: Would 6GB of RAM do the trick? I am going to purchase the base model Mac Pro 2.66 Quad. I will be using the student discout. My second question: If I buy a third party video card like a GTX 285 or HD 4890, am I able to use both the DVI ports? I plan on having two monitors (1900x1080).