high end canon? could that be the G2? or even a D30/D60?
i don't think increasing the shutter speed would help... in fact you will probably need to decrease the shutter speed to allow more light to come into the lens. you might need a tripod to minimize handshake, but then the animals are moving so that might not be too helpful.
i guess you could increase the ISO to the highest possible/usable value. for d60/d30, that should be quite high (800, 1000 or even 1600 for the d30). i don't know what the highest usable ISO on a G2 or G1.
aperture would probably need to be wide open... the dof would be really shallow, but at least there's more light.
anyone can confirm if these are indeed the things that need to be done? :dunno: