The total is $809+tax+shipping (add another $100 for windows 7
This build will be able to max out most games. I chose not to get the Gtx 680 because I can not find any that are not sold out from Newegg. I also have not seen any good reviews for it.
Would not suggest stock cooler at all. Mainly because you'll get way high temps. I honestly wouldn't push it passed 4.3ghz on the stock cooler mainly because it doesn't handle heat well. Though adgj is correct, people have pushed the i5 2500K to 4.6ghz on the stock cooler. There is always cons though, heat being one of them.