I need help how much Watt (Power Supply) for my PC

[HBond]

Please
I have PC with this specification and i need help for how much i will buy as Power supply watts for it :

1- ASRock Fatal1ty 990FX Killer AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard

2- EVGA GeForce GTX 750Ti Superclocked

3- 3x(4 G.B) Ram

4- AMD FX8350

5- WD Black 4TB Performance Desktop Hard Drive: 3.5-inch, SATA 6 Gb/s, 7200 RPM, 64MB Cache WD4003FZEX

6- CD/DVD

7- 2X Fan 120m

So please help me ASAP, how much i need as watts for my PC

 

[turbopiki]

You dont need much for this setup a good 400w PSU will do just fine

From Tier 1 or 2.

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html