case exhaust techniques

[roofsniper]

what are some good ways to exhaust heat from the case? i am using an nzxt alpha if anyone is familiar with it and i have plenty of intakes but only one exhaust. heres a good look at the case http://www.techpowerup.com/reviews/NZXT/Alpha/4.html and the attached image is a picture of a case(not mine) with parts inside it. the red squares are fans i currently already have in there. i have 2 intakes, a fan in the hdd bay and one exhaust. the green is fans i will most likely be adding soon which will be another intake in the bottom 3 5.25 bays and a fan at the end of the 5.25 bays. in the blue is a top exhaust which i don't have but i might cut holes for if it seems like a good idea. but im not sure as my psu is longer than the one in the picture and the fan will only be over my ram slots.

my question is if there is anything else i can do to exhaust the heat or get better case airflow/temperatures. room temperature is currently 25-26C and the case temperature is 32C. i have thought of maybe adding a pci slot cooler to suck some air out the back but im not sure if it will be worth it or work well. also adding those fans in green will improve cpu and motherboard temperature but im not sure about case temperature.

any suggestions?

[spookmineer]

Air flow. Not air chaos...
The most efficient way to get cool air in and exhaust hotter air is a straight line (which ofcourse is not possible in a case), but the flow should more or less follow an S curve: in front low, exhaust high end.
Easy in, fast out, with the least amount of obstacles and no additional intakes which messes up the airflow.
Adding more intakes/exhausts will force the air to be split, which will make the flow turbulent, which is not as efficient.

This (http://icrontic.com/articles/pc_airflow_heat_cooling_guide) is a nice article which shows what happens with different intake/exhausts setups.

Note: in the results, the CPU load temperature was among the lowest for both "only rear fan" and "all fans".

Among the conclusions:

A single rear exhaust fan produces the best results overall. This flushes the theory of more is better right out the door.

[roofsniper]

yea i have already read that article awhile back. the reason why i have so many fans is because i have tested about every single way myself. at first i only had the side intake and the rear exhaust. then i added the front intake and that did little to nothing. i then added the fan inside the hdd bay and that did a pretty good job. now i have tested and seen that the front intake is absolutely worthless now no matter what rpm i run it at. i have tested the green fan farthest to the left and that helped temperatures a bit and i think adding a fan to the front of the 5.25 bays will help as well since the bottom intake does nothing because of so many obstructions.

[roofsniper]

my case temperature just hit 36C yesterday. is there someway i can lower that without installing a top exhaust?