Help with choosing PSU

Hi all,
I'm building a gaming rig in a few weeks,
And I need to know what PSU to buy, as I am poorly educated on them.
Here is my build:

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($229.00 @ PCCaseGear)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($139.00 @ PCCaseGear)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($46.00 @ PCCaseGear)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($99.00 @ PCCaseGear)
Video Card: Gigabyte Radeon HD 7950 3GB Video Card ($325.00 @ PCCaseGear)
Case: BitFenix RAIDER Mid-Tower Case ($94.99 @ Mwave Australia)

I will not be using Crossfire, but I may do some minor overclocking in future if the need arises.
My budget for the PSU is $120.

Also, let me know what you think of the build itself, thanks! :)

P.S. Sorry for no links, I'm sick at the moment and I can barely move, aha.
7 answers Last reply
More about help choosing
  1. I would recommend a corsair TX 550, I doubt you will need more than that if your not going to crossfire.

    Build looks good, it might be good to get 1 x 8gb ram, it gives you more room to upgrade in the future.

    I would also invest in a 128gb SSD if I were you, it greatly increases to speed of boot and game loading.

    That case is cool, another good choice could be the CM haf 922 (but this comes down to personal preference).
  2. Well 7950 CF (im includin CF option down the road) need 360 W

    So add 77WCpu and
    15W hdd
    25W Dvd
    16W Ram

    =520 W including some OC.

    So a 650 W will be great.

    Right now you can get this http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3938566&SID=

    Or this

    http://us.ncix.com/products/?sku=59616&vpn=P1650SNLB9&manufacture=XFX&promoid=1373

    Personally i would get the Xfx 650W. Its a great PSU and will do the job.

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=216
  3. Would it be wise to get a modular unit or are the cables not that hard to manage?
  4. Not really hard. I have Tx 750 and have tooooons of cables. And its easy to manage them
  5. Okay, thanks.
    The Corsair TX 550M is modular, and there is no 550w corsair psu that is not modular, that's the only model. Should I get that?
  6. I would always go with corsair if i were you
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