With those specs you should. Get a skyhawk PSU....nice blue light...detachable molex cables....and cheap. And perform nicely 29.99 for a 520W i believe.
This ram you may only want if you don't have dual channel, I didn't realize you'll probably be using dual channel so here is my recommendation on ram... http://www.newegg.com/Product/Product.asp?Item=N82E16820220006
$126 and is faster than the ram you were recommended earlier.
Yeah you should easally build a buget gaming computer I built mine for about $1500 Canadian, and I still had to take the monitor from my grandparents old computer and they're keyboard and got a mouse from a friend.
But try Companys like:
Msi, OCZ, Gigabyte, Maxor, Seagate...
All good stuff.