walang dapat na settings...it really depends on the situation...
kung magalaw ang subject mo, you need a fast shutter speed around 1/160...ang advice is for example at 200mm ka, shutter is 1/200...kung 55mm mga 1/55...rough estimates lang yan...
you didn't indicate if you have a fast lens...2.8 yung aperture
maganda may flash ka...sb600/sb800 or 580EX...
taasan mo ISO kung kailangan...it's better to have grainy shots than blurry shots because of slow shutter speed to compensate on light...may noiseware naman or noise ninja