Nate don't worry too much about the brand of thermal paste, when your machine is at its limits the temperature difference is generally less then a degree. Higher quality brand name pastes only really make a big difference to your idle temperatures. This effect is similar to leaving a car out in the sun on a hot day, even though one may be white and the others black; when both are left till the heat saturates the inside temperature within the car are identical, only the rate at which it takes to get to that maximum temperature changes.