Why would you fit the radiator there when you have a 120mm mount at the back, a 120mm mount on the side, & a dual 120mm mount at the front? I mean if you were truly hardcore you would find a heater core that happenned to be about 200mm & attach it beneath the big fan.
If you're going for a red theme, I STRONGLY recommend that you strip the case down & spray-paint the bare metal of the inside of the case in red auto paint - it makes SUCH a difference, because then any lighting you have reflects off the red & looks even redder.
(Sorry, it's rather hard to get a decent photo of the effect with the lights down, but trust me - spray the inside & you will NOT be disapointed).