Re: question about what to worry about cpu temp or core temp?
Core temp. This is most important as the transistor wells begin to do funny things at very high temperatures such as introducing a larger depletion widths. Get a program called Core Temp and it will monitor the temperature of all the cores in your system.
Intel Core i7 920 @ 4.0 Ghz
Coolermaster V8 CPU Cooler
Asus Rampage II Extreme
Nvidia GTX 280 Tri SLI
3 x 2 gig DDR3 Corsair
Thermaltake Toughpower 1200 W PSU