I'd like the ability to go up to 15 drives in that one case over time, and would really prefer a pedestal server as I don't have the horizontal space in my living room. I was leaning towards that Coolermax after reading about it over in the Un-Raid support forum, and would probably need three of those 3-into-5 bays. My question, though, is if I can fill up the existing nine bays first, and then swap out to 3 of the 5-bay backplates without screwing up the array. I assume that each disk's physical address is stored somewhere. Would moving them from 9*1 to the 3*5 layout cause an issue? I guess it wouldn't as long as you use the same ports on the MoBo, but that leads to my next question. Do you need all of your port expanders installed when you build your array, or can you add those as you go just like a hard drive? Thanks guys.