Intel coolers are generally quieter then AMDs. AMD uses fans that can spin upto 10,000 RPMs which can get very loud when it gets warm. Why not just get an aftermarket cooler for the Phenom II not sure why you would consider changing CPUs just because the fan is noisy.
Its not switching CPU's only. I am wanting to have a go at Hackintosh. I've been an AMD user since AMD 4200+ but the 955 has left a bad taste in my mouth. I might just give away the 955 rig to my brother or sell it.
The problem is the TX 3 is crap and most likely was not set right. I have A phenom II rig at my aunts house I built for her with a Hyper 212 cooler on it and it never gets above 55C. Also your case cooling might not be setup right because the Phenom II is not really that hot of a chip.
Thanks for the recommendation. However the ASRock p55 here on the other side of the pond cost what is essentially $160 .... in other words 100GBP which is ridiculous. Perhaps I should just wait for the SB i3 2100