Nice to see reports of the cpu doing well in games, Planetside on my current setup does drag every so often.
Have a good think about airflow through the case too, I found on my setup that a rear case fan had little effect, when using a big cooler.
It may be different with my Haswell and I will be posting the build when I do it next Tuesday 11th June.
Is there anything blocking air coming in from the front?, are there any vents in the bottom allowing you to pull cold air in from underneath?
Currently using 2 fans to diagonally force air to my GPU as it radiates heat like there is no tomorrow, and that definitely helped the overall temperature inside the case.
Glad you are enjoying your new kit, sounds like you're like me, a gamer and tinkerer