I just recently (two days ago) started to play with NetBSD to get a feeling for BSDs again.<p>Looked at FreeBSD, NetBSD and OpenBSD - NetBSD seemed to offer the most current packages (and ports) for my needs, OpenBSD had quite an attitude problem.<p>ZFS on FreeBSD (it seems to be supported on NetBSD, but I haven't found references of it being _used_ in the wild) is a decent reason to give that one a chance again.