Made a couple of changes. Increases costs by $20 but gives you a better performing SSD, faster RAM, and a better build quality PSU. The G1 series wasn't great quality wise. The G2 is a better step up. Its not a 650w, but really you're not even hitting 500w (I think barely 400 at load) with that system as it is so a 550w would do you just fine. PCPartPicker part list / Price breakdown by merchant
Looks good, I changed the power supply the supernova NEX series is mediocre for the price. If you want to stick with EVGA look at the GS series made by seasonic or the G2 series made by superflower they are all about 10 dollars more expensive than the NEX but its worth it in my opinion.
Made a couple of changes. Increases costs by $20 but gives you a better performing SSD, faster RAM, and a better build quality PSU. The G1 series wasn't great quality wise. The G2 is a better step up. Its not a 650w, but really you're not even hitting 500w (I think barely 400 at load) with that system as it is so a 550w would do you just fine. PCPartPicker part list / Price breakdown by merchant
1. Samsung evo is considered as more reliable and performs better.
240gb is good for windows.
Unless you will be storing large files such as videos, you could defer on the hard drive. It is easy to add one later.
Or... consider that a 500gb ssd up front may let you defer on a hard drive forever.
Some have suggested faster ram, but faster ram does not translate into significant performance improvement. http://www.silentpcreview.com/article1478-page1.html
And... I think faster ram that needs more than 1.2v may have a negative impact on overclocking.
2400 speed is about right.