Good downflow cpu cooler for 2500k OC?

[N11Ckk123472]

I'm looking for a good cooler with a fan facing down at the CPU
I prefer low profile coolers and my case can't support big stuff like a hyper 212 or an nh-d14.

I want to overclock my i5 2500k to at least 4.2ghz

Here's what I've been looking into these 2:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835214026

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103100

any suggestions like these?

 

[mocchan]

http://www.newegg.com/Product/Product.aspx?Item=N82E16835608019

Cooler master Gemini or this Noctua gets my vote

 

[merrymustu]

Go for the NZXT Havik 120 or Havik 140, no other single tower cpu cooler comes even close in terms of performance.