Not much into air coolers, but I have heard some good things about the D-14
I beleive it is a top preformer for air to air systems.
I just got a H70 that preforms decently as well, they can be had for $ 84.99 after rebate if you shop around, or Like I did.... get it used for $ 70.00 shipped.
Best of luck and remeber, it does not matter what you bench or what type of cooling you preffer/afford, just make those components bleed ......
That is what we refere to as Fostering the Fever FTW