I checked out your case design, Cproflow, and your temps are actually consistent with my expectations and other reviews. First off, remember that the Aurora is designed as a water cooling case, which means that the heat from the CPU, chipset and possibly even the graphics cards, will be directly removed from the case and not significantly add to the interior case temperature. That said, the case looks like it should be a good air cooled case. Unfortunately, it appears that such is not the ...umm case.
The case is designed as a negative pressure case, as evidenced by 2 x 120mm exhaust fans and 1 x 120mm filtered intake fan. The airflow from the front fan will do an excellent job of cooling the HD, then flow in an 'S' pattern upwards, to exhaust out the rear 120's. Due to the negative case pressure, the remainder of the intake air comes from the side screen. Now here is the rub, 2/3 of the side screen is above your graphics card(s), which means that most of the airflow from the side screen is above the card(s), doing them no good whatsoever. Clearly, if the cards were water cooled, this would not be a problem.
Anyway, my advice would be to install a side fan blowing directly onto the cards and/or the nF4 fan.