Personally, I wouldn't trust a Rosewill product at the base of my system. Maybe a Rosewill peripheral like a microphone or network card, but not for a Power Supply. They are made cheap to be sold cheap.
Rosewill gets great reviews from buyers because the people who buy their products are cheap and don't know the difference, and are too happy that they saved $10 to realize that they're new SLI Gfx cards could go up in flames from poor manufacturing of their PSU. lol
I'd go with a power supply that's well documented as being efficient and a great psu all around.
Like the
Antec Earthwatts EA500, which is currently on sale for $59 from it's regular $90 price tag.
If you're gaming, you may want to consider a gfx card that has 512mb memory, but that should do fine for most games at decent settings.
Personally, I'm not a fan of cheap 5.1 sound setups. They usually sound like their price would indicate.
In most cases, you would be better off spending the money on a 2.0 or 2.1 speaker setup. You could get some really nice 2.1 active desktop speakers from a great brand for not much more, like the
Swan M-10 speakers.
But that's just personal preference, some people don't really care if they get the clearest audio as long as they can hear the explosions behind them while watching Die Hard 4, or that sneaky gamer coming up behind them with a knife.
Just some food for thought.
Other than that, the build looks pretty good all around