Revised First Build

[Doctor Roflcopter]

I posted this build the last time, however I took people's advice and improved my build, which is Here. I decided to instead get the Fractal Design R5 instead of the Antec 900 which seems as a great improvement. I also decided to get a Cooler Master Seidon 240M as it is a AIO and is shy about 4 degrees when at full load compared to a h100i. However, the problem I have is deciding the fan setup on this case. I plan to overclock my i5-4690k and I'm hoping to get decent airflow. Personally, I'm not sure if positive or negative case pressure is better or not, but I was thinking of putting the two stock fans as intake on the front and having a 140mm PWM fan controlled by the mobo for exhaust. I would like to see input on improving this even further and would also like suggestions for fan setups on this case as I am clueless about this.