Great chart... I'm a little upset with the Thuban numbers though. I expected higher.

From this chart, I'm going to try and figure up 'best bang for buck' for my next machine. (Sossaman looks difficult to beat)

I don't know how many people have a killawatt meter, but it would be interesting to get power consumption for these as well, like Angmaar said. I guess the problem would be that it's not linear w.r.t vcore and vcore is not linear w.r.t MHz.