I have 2 questions about the mac pro before I pull the trigger and order one. The first is about Win XP, Can you install it on a firewire drive that is bootable? Or does it have to be on an internal drive? the second question is about older IDE drives of which I have a few. Is it possible to hook one of them up the the IDE 100 cable in the empty 2nd optical bay? This would save me a little money since I wouldn't have to buy a second SATA drive right away.