Need help ordering a new PSU for HP desktop

Hi my brother recently got a new "HP Pavilion Elite HPE-410t" PC for christmas, he also bought a new graphics card for it to replace the one that was already inside. However the new graphics card requires at least a 400w psu. The current psu only supports 300w of power. I'm not really sure about power supplies so I thought I could get some help here with the proper kind he should get for it.
 
that might be the right kind, but all the reviews seemed to turn me off, appears to be made cheaply based off of what everyone was saying. How do I know which is the right kind of psu to buy( right amount of connectors and such)?

Btw it needs to be pretty cheap
 
didn't mean cheaper than $40, just an overall cheap around 50-60 is acceptable.
I wanna link this one CORSAIR Builder Series CMPSU-500CX psu, but wont let me put links yet.
 
That one will work too man. Really if you look at reviews, which that Cosair only has 7 so far, the others are mostly DOA's. I would bet 99% of the items that get 1 starred are DOA issues. The Cosair one will work though, and they are a good company to buy from.
 
Oopz,
Corsair and Antec are both highly regarded PSU providers, but they also both have several lines of PSUs going from relatively inexpensive to top flight that also vary in quality.

You might want to take a look at these PSU rankings:

http://www.tomshardware.com/forum/278567-28-ranked-list-guide#t2081246

I recommend the Antec EA430w PSU for $45 AR with free shipping as the minimum to get:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371034

But to allow more room for later upgrades, I recommend the EA 650 which is only $10 more after rebate (not bad - 220w more for only $10)

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371015
 
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