I started out with a Dlink 323 NAS. That NAS could not go past 12mb/sec on my 1G network due to it's slow CPU (it was no slower on a 100mb network). I've since bought half a dozen NAS including the DLink 321, 343, Synolog, and Zyxel (which was surprisingly good for the price I paid). I installed the Zyxel at a local Sheriff's office and it's still running to this day. Now I'm getting serious about upgrading to a NAS that supports the new 10G network and found a deal at amazon on the Qnap TS-531X. It supports 2-10G ports. Can anyone find a better price on this at the current time? I know woot had a qnap sale just yesterday, but it's sold out on all their QNAP units.
Looking at this price history that's the lowest price on amazon. Too bad they charge tax in certain states (ca for one).
Update: as of 4:54pm on 11/19, the price has dropped to $490.03.