Mini-ITX PSU help: 360 or 400 watts?

erik_h

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Feb 2, 2010
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I am building my first pc: a combo home/media and basic-gaming mini itx system (specs @ http://pcpartpicker.com/p/P2gpTW)

I'd like a relatively silent system, so I am considering either a:
Seasonic 360 Gold ($60, http://www.newegg.com/Product/Product.aspx?Item=N82E16817151117)
or an Antec EA350 Bronze ($40, http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=9730672&CatId=11994)

Is that a mistake? My system wattage looks to be just a bit over 220-240, and I"m not sure if I should get a 400w instead--a 450 seems like overkill. Case is tight--I need no more than 140mm depth.