EggXpert

I'm looking for a good psu that is modular and $200 or less. I'm thinking about the new XFX one but I've seen some of the new Ultras and want those but don't want to not order from Newegg. I'd love some help.

And for those wondering I plan on using these components:

Core I5

ATI Radeon 5850

and 4gb of standard DDR3 RAM 

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Seasonic X-Series

http://www.hardocp.com/article/2009/09/25/seasonic_x_series_x750_power_supply_review/

http://www.silentpcreview.com/Seasonic_X650

I want to go with the XFX one but I'm not sure about it yet. I found a corsair one I like. I'll link to it.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010 

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The XFX is a seasonic M12D, and is a extremely good power supply.

The seasonic X650 is also easily one of the best out there too, as well as being extremely efficient even at low loads.  650W is also more than enough to power that computer.

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Delta is my 1st choice in power supplies
Biostar Tpower N750 (all UCC solid caps) 5000+ dual core PNY 9800gt 4gb OZC DDR2-800 320gb WDC 700W Delta DPS-700

User reviews of power supplies on newegg aren't all that useful.  Sidicas posted 3 professional reviews of the Seasonic X-series supplies above, those are the reviews you should be considering before making a purchase. 

Not sure why it's not in stock.  You could pick a different power supply, or look around for a Seasonic X at another store.  

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