I recently got an Intel Core i3-4130 variant of the TS140 for a great price ($230) and have set it up as my home Linux file server, which I intend to put to use to replace a Synology NAS that I am using currently.
This place holder post will get more details of the setup over the next few weeks.
Things I am planning to try:
2) btrfs/ZFS mirror
5) UPS nut client server