I may be moving into a different arrangement soon where having a loud SuperMicro rackmount will get me eviscerated. I'm currently trying to figure out the best way to turn this into a silent server that will fulfill my needs. The current box has 6 hot swap HDDs, 42gb of RAM, and 4 quad core Xeons in a giant SuperMicro board. What are my options of turning this into a quiet system? Are there Mini ITX or ITX cases out there that are designed to be quiet with corresponding motherboards that support that huge amount of RAM (it's mostly the RAM that I'm interested in)?
What about building it into a more standard case but moving the disks into some kind of ESATA enclosure? Does anyone have experience building large, quiet NASes?