Get a 7200 rpm hdd
Change your ram to the low profile sticks, so you don't have cpu cooler fitment issues.
I would go with an Asus board.
I would get a 650W power supply from Corsair or Seasonic that is modular or semi-modular so you only use the cables you need. And with 650W you would have room for more upgrades down the road and not have to buy another power supply when you upgrade because 500W wasn't enough. Buying a higher quality power supply is something you won't regret, and it will likely last you several builds. I have Seasonic X-850 850W myself and it works very well.
Seasonic PSU-
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088
corsiar psu-http://www.newegg.com/Product/Product.aspx?Item=N82E16817139012
And I would choose a different case from Corsair, Antec, Cooler Master, or NZXT (that has more airflow) and fill it full of fans, but that is just me. If you like that case you picked, stick with it.
What games you gonna play and at what settings?
If you can afford to save more I would get a 760 from Nvidia or a 7870 from AMD for a video card. Or if you are lucky you might find an AMD 7950 on sale (sometimes on sale for around $250ish to $300ish)
And do research on how long your video card is and how tall your cpu cooler is and make sure the case you select can fit those components.