Since I was looking up which boards would make a proper NAS and home automation hub, I figured I might as well summarize the options in a post.
Requirements for a proper NAS:
Gigabit Ethernet
SATA that is not a crappy USB->SATA chip
Armbian-supported
That last one is because otherwise the options are much more numerous and scattered, and the previous requirements become vague (e.g., you could even just take out a netbook's motherboard and run it standalone).
Also, you could use an