What PSU do I need?

I’m making a pc for myself & now my question is how much watt will this build take & which PSU do I need?

Build:

  • Motherboard: ASRock 970 Extreme3 R2.0
  • CPU: AMD Phenom II X4 965 Black edition
  • RAM: Kingston HyperX 8 GB DDR3-1333 Kit
  • HDD: 500GB seasonic
  • Koeling CPU: Cooler Master Hyper212 Evo
  • Keyboard + mouse + headset & 500GB External HDD are with USB slots + Display (syncmaster 245b)
  • GPU: Ati HD Radeon 6850 Black edition

Which PSU do u guys recommend?

I usually use a 500 to 600 watt on all my builds , Just by a brand name PSU, Like Antec/OCZ/Corsair and so on.. Make sure it has an 80% rating..

Yup agree with Ghostman 1 a 500 watt to 600 watt is a good PSU. Just get it from a good brand and not a generic one.