My vote doesn't change. (sorry, I typed DDR2-800 twice last time.) Set the FSB to 400, leave the multiplier at 9 if possible, 8 if not, and set the FSB:RAM ratio to 1:1. Seeing as you have DDR2-1066, you can try to get lower then 4-4-4-12, but I'm not sure if thats possible. (its not if your memory is already at 2.2V) You have an Intel CPU, so fast memory isn't really needed.
Seeing as you have DDR2-1066, you can leave the memory at 1:1, and try to raise the FSB. If you can get it as high as 500, you'll nearly be stock for that memory. The CPU will have to go to 8, and possibly 7, but it will still be quite fast. I don't think I'd go very far on the FSB however, I'm a wuss with Nvidia overclocks.