Need help choosing a PSU

Hi, I'm in the process of gathering parts for my first build, and one of the last stumbling blocks for me is finding an appropriate power supply. I don't know why, but this is what I'm having the most trouble understanding. Here's what I've got for my build so far and as far as I can tell, I just need to find a good PSU.

PCPartPicker part list:
Price breakdown by merchant:

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($254.00 @ Canada Computers)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (Purchased For $36.73)
Motherboard: Asus Z87-A ATX LGA1150 Motherboard ($149.79 @ DirectCanada)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($90.98 @ Newegg Canada)
Storage: Toshiba 256GB 2.5" Solid State Disk (Purchased For $169.99)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (Purchased For $73.21)
Video Card: PNY GeForce GTX 770 2GB Video Card (Purchased For $330.00)
Case: Corsair 400R ATX Mid Tower Case (Purchased For $102.58)
Power Supply: Corsair CX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($114.98 @ Newegg Canada)
Total: $1322.26
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-02-10 16:54 EST-0500)

That's the power supply I picked right now, but it's more of a place-holder. I can't really get a grasp of whether a certain PSU will be compatible all my parts and I don't understand how to pick one that will have enough power. I've seen posts here that mention 12V rails and amps, but it's really just flying over my head. I see similar builds where people are throwing in 750w PSUs and others with less. Also, I'm trying to set myself up so that OCing is a possibility in the future if that matters when choosing.

As a side note, if there's anything glaringly wrong with my current build, please mention it lol. I like the pieces I've chosen, but I could be overlooking something obvious. Peripherals and OS aren't included as they'll be paid for outside of my budget on PCPartPicker.
4 answers Last reply Best Answer
More about choosing psu
  1. That psu is more than enough to power that system and corsair is a good brand psu its looking good mate get it.
  2. Look for a PSU around 500w, you shouldn't need more than that for your build. Stick with a Corsair (not the CX series), Seasonic, or XFX PSU.
    Power Supply 101: Understanding Power Supplies and Selecting the Right One for the Job
    Don't forget to check out other 101 articles:Airflow 101 Introduction Welcome to Power Supply 101! If you've come here because you're new to PC... Read More
  3. Best answer
    GTX770 requires 600W with 42A on the +12V, so pick up this Antec NeoECO C NeoECO 620C

    Here is the PNY GTX 770 review. The card only use 340W in load. The rest 300W will be more than enough for other components but may not for the SLI two.
  4. Thanks guys. The Power Supply 101 link helped me get a better understanding, and I think I'll follow cin19's suggestion and go with the Antec PSU.
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