Domo-Kun said:
With all do respect, I don't know if you checked the ones I lsted in the original post, but the Rosewill has more wattage, better reviews, and better specs than that one you posted.
Rosewill=mostly positive reviews, 2x12v rails, 550w and a cool blue fan.
The one you listed:none of the above.
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When it comes to PSU's I go to http://www.xtremesystems.org/forums/showthread.php?t=108088 to see how good different brands really are. As the link will tell you, there's a new list on the way, but the old one is still pretty valid.
Rosewill(which I've read is actually newegg's brand and they actually sell rebranded stuff, but that may not be accurate since I didn't delve too deeply) is in the bottom tier, while the PSU Zlejedi linked is in the second tier(and it's brand is actually in the top tier for higher wattages).
2 12V Rails isn't necessarily better than a single rail either. It means you'll have to balance the leads so that all components will get the proper amperage. This probably won't be an issue in your build, but given a stable PSU a single rail is generally preferred.
550W at 72+% efficiency doesn't sound better at all compared to 420W at 82+% efficiency when you won't be needing anywhere near either at max load. Soleron had a good point with efficiency earlier, though he may have gotten it backwards. If your system is going to draw 300W from the PSU, than the Rosewill will be drawing ~415W from the wall while the PCP&C will only be drawing ~365W. That will add up and in the end you'll be saving more with the more efficient PSU.
In the end, I'm not saying you should get the PCP&C PSU, but I would certainly recommend a PSU that's 80+(efficiency) certified and 400W+.