It has been quite awhile since my NAS project. There are some new hardwares available to recommend to anyone who has a little more budget.
Motherboard: ASRock Rack Mini ITX DDR3 1333 Motherboards C2550D4I
Casing: SilverStone Technology Premium Mini-ITX / DTX Small Form Factor NAS Computer Case, Black (DS380B)
The motherboard support 8 SATA III and 4 SATA II, and 2 gigabit Ethernet port. That is a potential 12 HDD and 2 Gbps.
The casing supports 12 total drives with 8 hot-swappable 3.5" or 2.5" SAS/SATA and 4 fixed 2.5" drives
This is setup is truly awesome.
Some times I think wouldn't it be cool if we can access it from anywhere as long as we have Internet access? Haha. Check out Owncloud and www.noip.com. Have fun people. :)
On other unrelated news, I am starting a new project! Raspberry Pi Powered Quadcopter: dongdongrpiquadcopter.blogspot.com