Stupid ddr466 question?

should I be able to run my pc3700 memory @ 400fsb without problems?

PC-3700 is rated to run 233mhz (DDR 466mhz fsb) so running an fsb of 400mhz (200mhz RAM speed) is absolutely no problem whatsoever. If it's good PC-3700 RAM you may even be able to make the timings tighter at 400mhz because its a lower rated speed