looking at the pics that ram is not that high as others from lets say corsair
but to be sure they fit well, why dont you buy the best air cooler available from thermalright, the Archon RT?
its not a double tower design but its better that the silver arrow at cooling at around the same price.
here is a reviewhttp://www.xbitlabs.com/articles/coolers/display/thermalright-archon.html
also the CM 212+ is a decent cooler