This is a review of the Infrant ReadyNAS NV, not their newer NV+ (featuring quieter operation and an LCD display). This review was written by request (yup, Jason G., I’m talking about you).
Out of the box, this is my favorite computer hardware. I bought a diskless ReadyNAS NV for around $663 including shipping (from NewEgg.com) and populated it with 4x 750 GB hard-drives. The initial firmware didn’t support these newly released Seagate 750s, so I populated it with 3x 750 until it could. It’s been solid and reliable ever since.