Brad, I was able to do 3.55 GHz at 1.456v in windows, I say with 1.5v in the BIOS for CPU voltage you can basically get up to at least 3.4-3.5 GHz. you are watercooled with great temps, dont be afraid dude.
Set your NB core at 1.28v and the Hyper transport voltage at 1.28v, leave SB on auto.
Suggestion, leave your FSB at 200 and use the multi, once you find the max on the CPU start to lower the multi and up the FSB. Its easier to tell whats causing instability.
Settings that worked for me:
200x17.5 = 3.5 GHz
CPU voltage @ 1.5v in the BIOS
CPU NB voltage @ 1.5v matched with the vcore
DRAM voltage by SPD as well as timings by SPD
NB multi at x10 *default
HT link at 1.8 GHz, always under 2.0 GHz for stability on high clocks.
NB core and Hyper transport voltage at 1.28, SB on auto
leave Auto express enabled, and CPU tweak must be off!!! it gives you a crazy increase in temperatures and has no performance increase other than in super pi.
Let me know how that works.
Once you find the overclock on the CPU, then you start to raise the FSB and lower the multi, then you can also play around with finding the max speed on your NB, as well as your HT.
Note: keeping the HT under 2000 MHz and the NB at around 2000 MHz is key to being stable at high clocks!