Well, the Prolimatech, a pretty nice cooler, is pricey, with shipping, near what $75? The Sunbeam CR-CCTF 120 mm Core-Contact Freezer CPU Cooler W/TX-2 is an incredible $35 plus $15 MIR, for a HSF that will go nekc and neck with the Prolimatech. Realizing that HSF isn't benched, I've seen it first hand, the SB CC is comprable, and what, less than 1/3 the cost?
http://www.frostytech.com/articleview.cfm?articleid=2460&page=4
I got a 9950 on a SB CC right now, high 20s idle, don't see it over 40c (with a mild hammer Oc), but dont game with this one, more video stuff. since the 955 is similar 125W, suspect temps be near comprable as well. Seems these are better temps, both Prolimatech and SB Cc than that aging closed loop.
SB Cc though man, great buy right now for $20 after MIR.
Box 1:Xeon W3520 D0/HeatKiller 3.0/Feser Extreme 360 w/ 3x Gentle Typhoons 1850s/SWFT655/EVGA E760 Classified/ XFX GTX 285(Kool 285 block OTW)/CORSAIR CMPSU-850HX/ CM HAF /Corsair Domi's 3X2GB DDR3_2000/F1 Spinpoint 2x1TB-SATA/HT Omega Striker/ Build #2: Antec 1200/ E8500 @ 3.87 Ghz/Gigabyte P45-UD3P/ OCZ 4Gb Reapers PC2 9200/EAH4870 1GB/750W PCPC Quad Silncer/CM V10 1/2aTEC/ #3 Biostar 790GX/AMD 9950BE 3.2Ghz/OCZ Reapers 4GB 1066 /2.75Tbs of F1 Spinpoint/Corsair 550W PSU/