Tom's Hardware has done a comprehensive article on case air cooling. it's fairly thorough, even though I didn't see my scheme among them. The article is to have a part II soon. Part I can be had here. http://www.tomshardware.com/reviews/cooling-airflow-heatsink,3053.html
Was an interesting read Red, thanks for sharing. I ended up reading on the Bulldozer article they did while I was there as well.
Nice link Its always bothered me having my psu upside down since i spent an hour searching for the end of a cable tie in my newly built machine, fearing it had fallen in to the psu vents.. Since theres only a small gap and no vents below, i guess im stuck with it
Was more in agreement about "well-designed towers like the Corsair Graphite 600T come very close." since that's what I'm using just now. But also agree that there isn't quite a perfect case yet
I preferred this article on the same subject http://www.pugetsystems.com/labs/articles/Vertical-vs-Horizontal-Case-Cooling-89 It has prettier pictures