EAX is pretty much dead, and Sound Blaster cards in general suck, i know, i have one, the Asus sound card rips them a new ass hole in gaming or entertainment.
The haf 932 might have good cooling but it is nowhere near as pretty as the ATCS 840 and you should be able to match the haf's cooling if you add extra fans to ATCS
There are reviews for the Seasonic 650W psu and they use the same components. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=169 http://www.silentpcreview.com/Seasonic_X650 http://www.hardwaresecrets.com/article/837