I will be interested in seeing how well yours clocks. I have the same board for my other rig, with a 630j @ 3.55ghz. I was not able to get a 30%oc w/ the board, but am happy with the OC non the less.
I would also reccomend bumping your PCI-e freq, up to 105-110mhz. It will give you a little extra somethin for your video card.
*If you have stability problems w/ your OC, lower the HyperTransport speed under the chipset section, to 2x. For some reason, 3x or higher makes the NB really 'smoke'. I added a 80mm to the NB for some help.