cowgod2007 :
Makes sense. But I usually set my side panel fans to blow out and I've generally gotten great results. If anyone wanted to know, I have the NZXT Beta Evo case.
Does the side fan is a 200mm one? If so, making it an exhaust is a wise decision.
Well, in terms of hot and cool air, the positioning of rear and front doesn't really matters. It's the upper or lower installation you should be considering.
In fact, considering the intake usually sucks in dust, a rear intake fan (close to the wall, I assume) can minimize the pile up. Meaning, less maintenance intervals.
There is one more consideration, the negative and positive air balance. Although, I don't really take this into account, since my rig is a cool one (undervolted).
Just make some experiments on fan placements while monitoring the temperature.
For reference, I've got mine with 1 x 120mm side lower intake, 1 x 80mm side upper exhaust, 2 x 6mm rear upper exhaust (comes with the case) and 1 80mm other side upper exhaust (near the HDD). With my low voltage tweak, the ambient temperature never reach 40 degree Celsius.
But as Moto said, which ever works for you is good enough.