Try using coretemp to messure the CPU temperature
I'll give it a try, but I've tried OCCT, SpeedFan and CPUID and all display the same, so I can't see it being any different

Antec Kuhler is superb.
ive got one and just got another one for a friend who wants to cool his q6600 like mine.
very quiet and great at cooling.
I'm tempted, but the only thing that's stopping me is I'm planning on getting a full loop CPU/GPU's after I get my new motherboard... but I need a cooler by mid next week... so, I dunno
