Sorry for the late response, well I looked into FreeNAS a bit more, looks like from the stand point of my storage needs it will be what I need but it wants at least 8 (recommended 16) GB of ram and well my current machine has just 8GB. Raidz1 looks interesting.
UnRaid looks good because of it's ability to run a pool with random disks but it reduces performance. Currently I'm running 3 1 TB drives in raid 0, performance is good but no redundancy. I just have movies on it but I would like to make backups as well.