Best core i7 920 air coller that will fit my board and ram

1. ProlimaTech Megahalems: Using the best mounting system we've ever tested this heatsink delivers extraordinary contact surface pressure between the processor and polished base. The results produce the best cooling performance we've seen. As of July 2010 the ProlimaTech Megahalems was available at FrozenCPU for $61.99, or from NewEgg for $62.00. AMD users will also want the AM2/AM2+/AM3 mounting kit from FrozenCPU for an extra $10. Adding two high-output cooling fans will make Megahalems unstoppable.

2. Thermalright Venomous-X RT: The new 'Pressure Vault' mounting system offers incredible contact pressure, and pairs a polished contact surface to densely packed heatsink that supports two 120mm cooling fans. The Venomous-X RT kit costs $68, and includes AMD AM2/AM2+/AM3 mounting hardware and one 120mm cooling fan. As a standalone CPU cooler, Venomous-X delivers on its years of past design experience.

3. Scythe Mugen-2 SCMG-2100: Trailing right behind the two leaders is the $35 Mugen-2 cooler, which already includes AMD mounting hardware and a premium Scythe Kaze-Jyuni Slip-Stream fan... all for only half the cost of the the other two options. The SCMG-2100 model has already received our Editor's Choice Award honorable mention pertaining to value, and it consistently finishes at the very top. The Scythe Mugen-2 Revision B model SCMG-2100 heatsink is identical to the first version, model SCMG-2000, but SCMG-2100 includes a newly developed F.M.S.B. (Flip Mount Super Back-Plate) for more convenient mounting onto the motherboard and the thermal paste has been replaced by SCYTE-1000.

4. Cogage Arrow CPU-TRI-72: This dual-tower giant comes equipped with on 120mm cooling fan and Intel mounting hardware. Although our tests of the Cogage Arrow have never placed its performance above the previously listed heatsinks, the potential is certainly there. Priced at $70 before an optional AMD AM2/AM2+/AM3 mounting system for $10, the Cogage Arrow could tame your overclocked beast... presuming the cage is large enough.

5. Xigmatek Balder SD1283: Based on the original HDT-S1283 design, Balder offers some subtle improvements that help it maintain top-rated cooling performance in our tests. While the Balder kit includes a bolt-through mounting kit and costs $45, the original Xigmatek HDT-S1283 model uses push-pin clips and sells for $35. If you like the HDT-S1283 design but don't have much money, the Kingwin RVT-12025 is an identical clone that sells for only $22.

chedderslam1976 this is like your 3rd post regarding this matter.
And i know you're pretty much limited to coolers under 150mm tall.
I'll assume i'm correct about your cooler limitations.
This is probably your best option if it will fit.
NH-U9B SE2- $59.99 125mm tall and 95mm wide.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.noctua.at/main.php?show=productview&products...

Yes, I have posted a few times but I am exploring a few options. My money is tight(I was laid off a bit ago) and I am trying to make the right decision.

I have the option of paying quite a bit of money to modify my (very expensive already) case. I am looking at $125 for a custom backplate that will move the two motherboards in the case closer together, creating more clearance and allow me to use a larger cooler. I would have to buy a cooler on top of that.

The other option is to go with a 92 mm cooler, but I am concerned about performance.

I just bought this cooler:
Noctua NH-C12P SE14 140mm SSO CPU Cooler

But the performance is poor. Right now it is 81 degrees F in my room, and the cpu is idling at 56-57 C. Under load it goes to 76C.

So I have to decide if I spend all that money to go to a full size cooler that will work, try a 92mm one, or try, once again with the current cooler reapplying TIM.

What would you do?