this has been discussed on here before due to me, i am aware. however, i know that the wallstreet processor can safely be taken to 292 mhz with the 83 mhz bus (next model speed up from my 250mhz model) and then all the way up to 300 mhz with the 66 mhz bus. assuming i could safely take the bux to 66 mhz without throwing anything off, could it be POSSIBLE for the computer to be clocked up to 400 mhz? i only ask because the lombard is 400 mhz with a 66 mhz bus, and it has the powerpc 750 exactly like the chip in the wallstreet. i want to test this, but all i need is the proper heatsink for the computer. if such an overclock were possible then, what heatsink? pismo one won't fit i don't think, but a heat pipe model seems best.