I have a current model 2.66 Quad. I have some external drives that have esata ports. Some have FW800, but one, does not. Here are a few questions I'd like help with: 1. Is esata faster than FW800? 2. I've done research that indicates that esata does not daisy chain in the same way that FW does. That I'll need a separate port for each esata drive I want hooked up at the same time. 3. There are no esata ports on my MacPro. So, I have to add them. Here's where I'm really confused: a. It appears that on my model, there are no "spare" ports inside the computer from which I can hook up a port in an expansion slot. It appears that the option to do that requires that I disconnect the cable that would go to the second optical drive. Is that right? So, if I use that connection I'll lose the ability to use a second optical? (OWC sells a 2 port expansion and extension cable, but on my computer it says to take one of the ports off. Actually, one of the drives came with an expansion slot thing and cable but the cable was not long enough to reach the front of my Mac. Are there "extension" cords for esata cables? I've looked and cannot find one.) b. What about using expansion cards? Do they have the ability to create more than one port? If so, where do they connect, if not the optical port? I really appreciate the willingness of people around here to patiently answer questions like these. Trust me, I've tried to find the answers on my own but I've not found answers in which I have confidence.