Tim,
We also carry entry level NAS units that can expand and be used for video editing if you move into that realm for a need. Our entry NAS unit starts at $2449 using your own hard drives and fits 3 drives. Our NAS-Pro holds 4 drives internally, and expands to 28 drives if required. Our array's also hold SSD drives for read cache to increase performance. If you do need more of a storage array for video editing, our shArc unit is designed for editing. The NAS-Pro can be upgraded to a shArc if all you need is a basic file share for now, but then decided you wanted something to use for editing.
http://www.arcstorage.com you can build a configuration online for pricing, or email me for an official quote. Aaron@arcstorage.com
Aaron Vaughn
http://www.arcstorage.com