the asus that chx mentioned is actually decent if using just the 6 onboard sata ports for zfs. it starts to become a pain when trying to use a raid card or even a single port sata card.
Yes, the plan is to go with a ZFS build for this in a PC-Q25B. I'm not trying to get massive performance out of it so the onboard RAID will likely suffice but are there any boards that allow for a PCI option? I'm still trying to decide between Atom or an i7 board (dedicated ZFS on the Atom or potential all-in-one on the i7).