Bah Humbug. I run a T-Bird 750@900 Mhz when rendering! It will do 950 Mhz when running SETI and such. But yes, I do overclock, and toned it down a bit, because it is mission critical stuff. I see no reason to cower in the corner. A successful overclock is one that you can do anything with! And this thing kicks butt at 900 Mhz!