Building a NAS and I just don't feel like springing for a Server Case to store movies. Ran across the Xclio Nighthawk and it seems to be a pretty decent budget choice if it fits a couple of criteria: 1 - The Smart HDD Modular System.... are they just some HDD cages that are sitting in 5.25" bays? Can I remove them and just use a standard RAID cage or 5x3 in the bays? 2 - Can you replace those stupid LED fans with unlit 120mm fans or are they proprietary? I would imagine that the answer to both is "Yes" but I wanted to be sure.