I am currently searching for a new PC case for my next upgrade. I bought a Seidon 120M Liquid CPU cooler with 120mm fan that I plan to use. ($29 after rebate. Couldn't pass it up.) One case I'm scouting already has a 200mm fan in the top, so I'd have to vent my radiator out the rear of the case. A larger/more-expensive case with clearance to mount both the radiator and still have a separate exhaust fan is also an option, but money is tight. Quick question: Is there any cooling improvement mounting the radiator up top vs the rear?