For whatever reason, overkill I guess, I put fans on both sides for a "push/pull" on both of my corsair H55's.
I had the space and the increase in cost was minimal.
What you have isn't bad... but if you can handle the extra space and have the $$ i would buy 3 more fans and 3 baggies of extra screws and maximize the cooling on my system... why not right?
You've gone down the road this far... no?
Fractal Define R4, 4790k, 4gb x 4 GSkill 2133mhz RAM, Gigabyte SLI Mobo, Corsair H110 Dual 140mm w/ 4 Noctua's in Push/Pull, Dual 7970 Sapphire 6gb VaporX's with Kraken G10's and Corsair H55's to chill things out With Noctua 120mm's in push and 150mm's in pull, Seasonic 1200w Platinum P/S, Mushkin 1tb SSD for OS and Games... 4tb Segate for the rest, Lots of 4-pin fan splitters..hah.