I see an old thread (2007) about XSERVE and RAID and NAS as an alternative, and I'd like to revive the discussion. With the newer crop of these devices, many of which also double as SANs, how appropriate are these devices as simpler replacements for server/RAID configurations. What is the threshhold for suitable performance? Many units are marketed for home music and video use, or at most, backup devices. I am considering a level above that and looking to benchmark candidates. Do you have specific models that you would endorse, or models or vendors that you would caution against? Specifically, I am looking at NAS for simple file storage and collaboration, as opposed to a high-performance applications, like video streaming, scan capture, or web-serving. Thanks for your thoughts!