I got a MDD tower the morning it came out (10:30 AM est) and although it's pretty good for a mac, the clock speed is just killing me in certain games, like MoH:AA, and other processor intensive situations. So, because of this, i want to wait for the IBM PPC 980s (Not 970s) to come out, and then buy a processor upgrade. These come on a PCI card, dont they? Does anyone know how that preforms compared to the normal motherboard mounted position? Does this bottleneck the ram and other parts very much?