I think the pci and agp bus are not locked. Try to check the agp n pci bus speeds. It should be 33mhz for pci and 66mhz for agp.

Abit NF7 series and DFI Ultra Infinity which uses nForce2 Ultra chipsets. They are the best out there.

Put more voltage, increase bit by bit. Maybe the procs need more voltage.

Maybe that's the proc limit, sad to say u wont be able to get any higher than that with that mobo. BTW i recommend u guys to use Motherboard Monitor to monitor the Temps and Voltage rails.

Didnt get any readings ? Maybe u need to set the sensor manually. Anyway speedfan is a good one for beginner.

Haha, what i mean was its easy to use compared to Motherboard Monitor. Dont get offended k ?

Yup, since he's using kt600 there's not agp and pci lock. The bios is also one of the factor here since its a stock bios that causes the limitation. In the end there's nothing much u can do. Maybe u can try several combinations of divider and multiplier to achieve higher clocks.

For sure, but for now i think ur pc would suffice your needs. Maybe u can wait till AMD socket M2 debut and Intel Conroe comes.

For now i think u can just see what else u can do, until u reach the limits. No point spending now when new hardwares are just around the corner.