I was working with a NAS a couple of months ago. The way it was explained to me was that several computers could link to it via ESata or GIGe network and we'd be able to edit HD. That didn't work out too well. We ended up using local drives to work and copied files back and forth over the network, which was too slow as far as I was concerned. We couldn't figure out how to use the eSata port.

The NAS took about 5 minutes to boot up, took several people a few days to make it work with a Mac and just seemed to take a lot of effort. Maybe that was because the people I was working with were unfamiliar with the drive.

For my own purposes, working on a completely different project, I picked up a G Technologies Q-Raid:

It comes striped for Raid 5 but you can easily edit 1080 HD using the eSata port. Raid 0 is also supported which would boost the speed considerably, I would think. It's plug and play and starts up quickly.

The size ranges from 4 to 12 T. For my single user situation, it was a good choice.

I'd be interested to know which direction you go in and what your experience is.

Jonathan