This is a cool build from M. Metzger. You can also follow this build in the forums here.
The Old -- The ex475 (7 2TB and 1 500GB drives) mirrors the ex495 (5 2TB and 3 1.5TB drives)
The New --
And in the cart (istarUSA WOS-990)
Case - Norco 4220
Motherboard - Intel S3420GPLX
Processor - Intel X3450
Memory - 8G Kingston KVR1333D3E9SK2/4GI
Power Supply - Corsair CMPSU-950TX
SATA cards - (3) - Supermicro AOC-SASLP-MV8
Optical Drive - Sony AD-7670S-01
System Drive - 2 Seagate ST9500420AS
I have since bolted a sheet of MDF on top of the card for the keyboard and monitor.
Once Vail is RTM, then the 470 will be retired.