FSB = 400
Multi = 9
9 x 400 = 3.60GHz
If that stays under 62C or so on full load with both cores (run prime95 twice; one instance on each core), then tick it up 2 notches on the FSB at a time.
Memory, obviously, run whatever divider will get you to DDR ~1100Mhz. Don't tighten timings until everythign else is stable.
Attempt to hit 650Mhz Core on each vid card. Tick higher if stable.;
Attempt for DDR 2100Mhz on the vid card mem - tick higher if stable.
If all goes well, then maybe try dropping your multi and raising the FSB even more to compensate.
On my system, all other variables being equal, using a FSB increase versus a multiplier increase gave me about a 3% gain in points with the exact same net processor speed. It should do even more for this setup considering the massive FSB bottlenecking occuring.