Krh-proe I scanned the article you referenced and I have to say that it is a little dated. All XP's and MP's have a thermal protection diode now, thunderbirds do not. At the time Hot Spot - How Modern Processors Cope With Heat Emergencies was written there were no motherboards / chpsets capable of utilizing the diode. Now most new motherboards are able to throttle or shut down the system in the event of an overheat occurence, at least Asus and MSI boards anyway.
I personally run the A7M266-d, (with dual 1900+ MP's), and it is supposed to be able to fully utilize the diode and shut the system down in the event of an overheat, however, I am unwilling to verify for you.
Also, I take the optimistic view. If my CPU'(S) fry in a year I have a good excuse to upgrade.
Yes, I do own stock in AMD, but I also own stock in Intel as well.