Psu wattage

Hi!
I'm building my first computer and I want a comment about the configuration from an expert. I also need an advice for the psu wattage, because I really don't know how much I need.

Motherboard: GA-Z77X-D3H
CPU: Intel i5 3570k
CPU Cooler: COOLER MASTER Hyper 212 EVO
GPU: GTX 660ti
RAM: Corsair Vengeance 16gb (2x8, 1600)
HDD: WD Black
SSD: 120 gb ssd (I will buy later) and a Muskin msata 60 gb
-An optical drive
-Tp link Wireless adapter N
-Hauppauge Collossus
-A card reader/usb header (+case usb)
-6+ fans

So, I need help choosing the Psu wattage
2 answers Last reply
More about wattage
  1. I'd say get a decent 450/500W.

    The most I've ever used on my setup when I maxed out (experimental) my overclock was 480W, and that was with an i5 2500k @ 4.9Ghz 1.5v and my 560 ti at 1Ghz and max voltage too, yours would be less. under normal overclock I was using 350W using prime 95 and furmark (artificial stress testing programs). under actual gaming use I was using under 250.
  2. Antec Vp450W for 31$ on ncix.

    Get it (Golden Award) as it will do all the job it needs to !
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