Help with buying a nas

Hay i just wondering can some one help me with buying the right nas for me.

I want it to stream music mostly, and movies every now and then, i have around 340 gb of music and like around 100 gb of movies, so anything atleast 500gbs will do but more would be better.I need some thing thats no more then 500 (aus) dollors.

thanks for the help

  • Brand Name: Western Digital
  • Model: WDBACG0020HCH-NESN
  • Warranty: 3 years
  • Hardware Platform: Pc
  • Width: 7.00 inches  
  • see if that fits your needs amazon $139.99 FREE Shipping