What are the typical temerature ranges for the black Macbooks?

Hello everyone,
Posting this as a one-year owner of one of the earlier black MacBooks (Macbook 2,1 - mid 2007 - 2GHz Core 2 Duo) just wondering what the typical temperature ranges are for at idle and under load for this line of machine?
I have modified the device slightly, putting a 120GB solid state drive, toping it out with 3GB of RAM and have Lion installed on it. I use it for a mixture of general web browsing and work (which does include running a Windows XP virtual machine in Fusion 4 although again, nothing heavier than testing websites in IE/Chrome/Firefox/Safari) and have just become a bit aware of the temperatures.. At idle (nothing running at all) the system is at ~40C and under load about 70C-80C, with the fan running flat out to cool it down. Watching YouTube videos does also put it up at this temperature, but I understand that Flash and OSX do not play nicely. I have opened up the device and blown compressed air into and around the fan intakes to clean it out, and most (if not all) of the time it is on a flat surface with adequate ventalation.
I'm really wandering whether these temperatures are typical for this range of MacBook, as from experience a laptop of this spec should not be getting this hot.. Also a question for anyone that would be kind enough to take a stab - would it be worth me replacing the thermal paste on the CPU/GPU with some Arctiv Silver? I'd be comfortable doing that if it would benefit my heat issues. I've had a Google about this and the results are a mixed bag..
Thanks for anyone kind enough to take a look at this!

Okay well in lieu of any answers since I posted this (I am aware it was only a short while ago) but at the rate posts get buried on here, I wanted to post my own findings.
Various posts across the we show that the white series of these MacBooks operate at around 50C-55C at idle and under load reach up to 80C. Apple says that it should shutdown at ~90C - the highest I have ever seen my MacBook get is 87C, so temperature wise:
Idle: 50-55C
Under load: 70C-80C
Thermal Shutdown: 90C
With the fans being noisy when under load, apparently there are two main "families" of the black MacBook. The earlier models (of which my one is) run at the above temperatures with a fan speed of ~6800RPM being fully open and ~1200RPM being idle. The Santa Rosa MacBooks however being a later model have a much more efficient - albeit more noisy - fan module. I daresay the Santa Rosa black MacBooks are more common being the newer model.
So my findings - my temperatures of reaching 70C-80C are normal for the work I do. The fan speed being up to 6800RPM is fine - and the noise is just a trait of this line of MacBook sadly.

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