What is a normal operating temperature for the Q8200?

Hey guys.

I know that you hate these temperature questions, but I am just curious because I was expecting lower temps than what I have.

I just bought the Asus P5N-D board and threw in a Q8200. I am using a Thermaltake V1 fan which was quite interesting to install, and resulted in me trying it 3 different times. I'm certain that it's on right now, and I made sure that the thermal paste was spread out nicely.

But looking at the temps, it's idling at about 40C with the fan on full, and 45C with it turned down. It doesn't change drastically when under heavy use, and after my last install of the heatsink it's about 5C cooler at idle. But before it would max out at about 50 or maybe 55C under a full load. I haven't done any overclocking, although I planned on it.

Is this normal? I was expecting the temperatures to be a bit cooler using the V1, but I've never owned a quad core and my last CPU was an AMD 5000+ which idled at around 40C on a stock cooler.

Also, there is a difference of about 5C between different cores. Most are 43C-45C, but one is 39C. Does that mean I spread thermal paste wrong, or is it just from different cores being utilized?

Any help on this is appreciated.

The V1 is a pretty big heatsink and fan. It's a high end aftermarket cooler. At least it'd better be, since it was $77 CAD and has good reviews.

I would think that it would be similar in performance to a Zalman cooler, which is what has me wondering.