Yes Richard is correct higher ISO Via the buttons and the wheel to increase ISO and try and retain a shutter speed of around the focal length of the lens you use ie 1 50th of a sec for a 50mm lens.. Having a faster lens will also be of great help and a 50mm standard lens 1.8 may not break the bank and is capable of great results

Danny O'Byrne  http://www.digitalartzone.co.uk/

"All the technique in the world doesn't compensate for the inability to notice" Eliott Erwitt