Just installed the Megaflow 200mm Fan, and wow I didn't think these fans were this BIG until I opened it.
I had some troubles installing the fan as the 1' 1/2 or so screws that come with the HAF 912 for the front 120mm fans won't go all the way through the Megaflow, so I just zip tied them temporarily until i can find some screws that work.
This fan doesn't seem to push much air even though it's rated at 110 CFM, maybe its just that I'm used to the concentrated stream of air from a 120mm fan vs the currently installed 200m front intake.
http://screensnapr.com/e/9pqIJ1.jpg
Also, can anyone vouch for any good fan controllers under $50? My Sunbeam one is over two years old and the first channel is cutting on/off randomly and the 3rd one is dead. Yesterday, I smelled a burning electrical smell, so I think it was the fan controller. :3