Airflow Configuration

I have a Cougar Evolution computer case, and I am wondering if anyone has any advice on how to flow the air through it. I have no idea really how to configure my fans, and it is currently just set up in the way that I thought would work.

However I have 6 decent fans (all pushing/pulling 60-80 cfm) and I am still running quite hot on a couple of my components.

Currently, I am crossfiring two 6870's and I am trying to keep them cool (they are the main heat problems right now). One of them is reaching 94 degrees Celsius when put under full load for 15 mins. My question is, how should I configure my fans so as to maximize the airflow in my case? For reference, when I use the term pushing, it means pushing air out of the case, and pulling means pulling air into the case. I will give you the rough statistics:

-two 120mm slots on top of case
-one stock cougar 120mm fan in rear pushing(not going to move this one)
-one stock cougar 120mm fan in front pulling (to cool hdd, not going to move this one either)
-one 120/140mm left side slot
-one 120/140mm bottom slot

I have 2 NZXT 140mm fans http://www.newegg.com/Product/Product.aspx?Item=N82E168...
and I have two Coolermaster fans http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Given the side, bottom, and top slots, what would be the best way to configure my case so as to maximize airflow and keep everything cool. Mainly I am asking where my pushing/pulling should be.

Thank you for your help!