I was looking at the pictures of the new mac pro in another thread and noticed that the ram and the processors are on one card that comes completely out. (at least on the 8 core model) Is it the same with the quad core? If I buy a quad now will I be able to replace the card with an octad in the future? If not I'm going to buy a 2x2.8. (does anyone know where to get the best price on a 2x2.8?) any input is welcome.