Well, ya see, your actual FSB is 200mhz... quad pumped to 800 mhz. So you're adjustments will have to be to the 200mhz external clock speed of the cpu. So you'll want to clock that up to 233mhz... that way when it's doubled by the DDR technology, it'll be 466mhz... and then when doubled again by the dual channel whatchamacalit, it'll be... *math math math* 932mhz. Also consider that when you raise that external clock speed, you'll be raising your CPU speed... since 3.0ghz is 200x15... you'll now be doing 233x15, or 3,495 mhz.... Some people claim to hit that speed w/ stock cooling... but if you don't want to endanger your CPU, you should prolly go with some kinda really good cooler. On the upside, you're computer will be running pretty darn fast.
Also, I'm not sure if the FSB setting is indepenant from the CPU External clock setting... but it's pretty much useless to change the RAM one if you don't change the CPU one, assuming they're seperate. I haven't noodled w/ overclocking mine... I have Corsair TwinX3200LLPT (2x512). But I can run it at 2-2-2-5 w/ no problems. Because of the higher mhz rating of your ram, you won't be able to achieve both tight timings and high frequency.