I would suggest changing the memory to this
http://www.newegg.com/Product/Product.aspx?Item=N82E16820146731
Slightly better timings, slightly better voltages
I would change the video to this
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102810
same performance as the GTX 260, less money
Hard drive is fine but you might consider this
http://www.newegg.com/Product/Product.aspx?Item=N82E16822148445
Extra 90gb for an extra $4
The PSU you chose is very good but for less money you could get this
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=10006382
Also very good. More powerful to allow for any future upgrades you may want, it can handle almost anything you might ever want to throw at it.
I would also consider getting an aftermarket cooler simply because it will lower temps as well as noise from your system. Even at stock speeds it's a good idea to upgrade from the stock HSF. It doesn't have to be expensive, $20-$30 would do it.
Something like this
http://www.newegg.com/Product/Product.aspx?Item=N82E16835186134&Tpk=freezer%207%20pro
Great case, great price, Free Shipping (saves about another $25) very good choice.