Corsair H100 push or pull with other fans?

[nerdian891]

Hello, I bought a corsair h100 and I am debating on if i should pull in cool air, or push hot air out. The other fans that I have are a 120mm fan in the back and a 120mm fan on the window of the case which is blowing right onto my HIS HD 6790.

If you could tell me what fans could do what, that would be awesome. Thank you.

 

[popatim]

Front, bottom and side are blowing into the case, Rears and top should blow out.