Just came into stock at quietpcusa.com. I got it with the Acoustifan 120mm for $200.
It's basically an Antec 3700 BQE without a power supply, and it includes a custom fitted acoustic padding kit.
Hopefully when I put my Zalman 400w PSU and my Zalman 7000Cu in this bad boy, it will extremely quiet. Besides, I really hate the window on my Antec 1080.