<<Um, no. In most cases, AMD761 outperforms KT266.>>
In most cases, KT266 would be close to 760. AMD might come out ahead in a few benches, but overall doesnt slaughter the KT266. That will chance as soon as the revised KT266 boards come out.
<<AND it's more stable to boot.>>
That's more like just a psychological effect. Remember, the KT266s dont have 686B, the 760s do.