Fan cofiguration setup!

[PajamaXLlama]

All the fans i have now:
Cooler master 120xl exhaust config
Hd 7850 dual fan
Tx550m psu fan at the bottom

Where I have space to put fans:
Front

I can fit two fans in the front. How should I set them up? 1 exhaust 1intake or 2 intake?

 

[McWelshie]

2 intake at the front and if you can extract at the back preferably top back