Best PSU for my build

Below I will list 3 PSU's and my Computer specs, choose the best PSU for my build or comment with your own recommendation. Only requirements is that it is under $60 and on TigerDirect.com

Computer Specs:

Monitor: Acer S211HL bd 22" Class LED Monitor - 12M:1 Contrast Ratio, 5MS response time, 1080P, 1920x1080

OS: Windows 7 64BIT

Tower Case: Diablo Tek Elite ATX Mid Tower (Comes with a 450W PSU but I am switching it out to meet the requirements on my Graphics Card)

Power Supply: The three choices are listed below.

Processor: AMD Phenom II x6 1045T - Six Core, 6MB L3 Cache, 3MB L2 Cache, 2.70GHz, Socket AM3, 95W, Fan

Graphics Card: Radeon HD 6870

MotherBoard: Gigabyte GA-78LMT-S2P

RAM: ADATA 4GB x2 DDR3 (8GB Total)

Hardrive: 1TB Seagate Barracuda

Disc Drive: Lite-On IHAS124-04 Internal DVD Writer


Three choices of PSU's:

Corsair 650TXV2: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7195036&CatId=1483

OCZ ZT550W: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1393380

OCZ ZS550W: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=927369


Which is the best PSU for my Computer Specs?
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  1. Have you already bought the parts? Also do you plan on CF/SLI?

    Keep in mind the TX650 is after rebates. But I'd probably go with the TX650. Even though all of the PSUs you chose have a large $20 rebate.

    Judging by your motherboard however, you don't even need 500w+ power supply since you're not going to Crossfire I'm assuming.
    http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=422169&CatId=5430
    This PSU would be more than enough. You may have to buy this though since it only has 1 6+2-pin PCI-E.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16812198016
    This would give you 2 which I'm assuming your 6870 has 2 6pin power slots.
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