Im bout to upgrade to the new mac pro from my old PC. I am waiting till Macworld is over to do so. Just to wet my curiosity, I wondered the level of magnitude this upgrade is. Im going form a Pentium 4 3.0ghz w/ NVidia Geforce FX5200 and 2GB of 400mhz ram to the new base model Mac Pro. I will mostly be editing together video in Final Cut. What kind of improvements should i see? Is this gonna be like 4 times as fast, or like 7 million times as fast?