I keep a giant PC desktop for TBs of storage. I keep it on overnight for downloads and etc but it's a bit too noisy. How quiet is the mac mini compared to a macbook or mbp? I would need a 4 bay NAS if I were to replace my desktop. Are there any good suggestions? (Drobo is out of questions b/c of its unreliableness and difficulty to recover data). It would be nice if it has either USB3 or Thunderbolt (which the next mini will probably have) in addition to GB Ethernet. I guess another solution is to use the Mini as a download buffer and move the files to my desktop the next day. [Answered] EDIT: Since most people said NAS will be noisy anyway I'll just use my PC desktop for remote storage and encoding tasks. It doesn't need to be always on. If I replace a mini drive with a 2.5" 750GB drive, will it increase noise? Also, please be objective, but are there any equally quiet cheaper PC solutions for a quiet download server? I don't need firewire or optical drive, but USB 3 would be nice. EDIT: with that said, quietness isn't the only thing i'm looking for. I do want OS X for better window management and ease of running scripts. I've heard of hackintosh but I don't care to deal with driver issues at least for now. If a new mac mini is to have a thunderbolt port, can it support data and display at the same time? What about 2, or even 3 displays? Are they any speculations for a mini update, other than that it's 'overdue' ? Thanks.