Server?

Well im in a pickle... Ive got around 500 dollars to spend on parts for a server.  Not much at all.  So could someone please give me a part list or two.  I would like as much storage as possible. But while being the most power efficient possible.  Maybe green drives? Speed is not really an issue for me, any backups will obviously be done overnight and any large file moving will also be done overnight. Thanks for any replies, hugs and kisses. 

Oh, and also, could you please include it in the corsair carbide air 540 case? 

That's one expensive case, especially considering your budget.

http://pcpartpicker.com/p/213yM\

CPU: AMD FX-6300 3.5GHz 6-Core Processor for more cores.  Should help in a server environment.  

MOBO: ASRock 960GM/U3S3 FX Micro ATX AM3+ Motherboard.  Cheap, has a video chipset.

RAM: G.Skill Ares Series 16GB (2 x 8GB) DDR3-1866 Memory.  16GB of RAM if you need it.

SSD: Kingston SSDNow V300 Series 60GB 2.5" Solid State Disk.  Just for Windows, and windows only.

HDD: Western Digital Caviar Green 3TB 3.5" 5400RPM Internal Hard Drive.  3TB of storage should be good.

CASE: Fractal Design Core 1000 USB 3.0 MicroATX Mid Tower Case.  Smaller case, so you can put it somewhere out of sight.

PSU: Corsair Builder 430W 80 PLUS Bronze Certified ATX12V Power Supply.  80+B, cheap.

Its perfect.  Thanks for the reply man, I love the case also!

http://www.ebay.com/itm/Dell-CS24-TY-1U-C1100-Server-2x-E5530-Quad-Core-Xeon-2-4-GHz-24GB-1x-500GB-SATA-/141111541639?pt=COMP_EN_Servers&hash=item20dae73f87 SERVER! Add drives as needed!

http://pcpartpicker.com/p/218P7