Fantastic achievement with the Tualatin! There most definetly is a Vcore mod for the CUV266 as I have it on mine at home think the reg allows upto 3.5V Vcore but I wouldn't like to try it. Im away at the moment so I haven't got any other details but the mod is definetly possible!

What hard drive are you using wtih 46MHz PCI frequency? Or are you using a 64bit PCI IDE card?

Cant wait to see you pi1m time for the 1300! Congrats again!