G12: 10mp CCD, HDR, OIS, 28-140mm lens (equiv), front dial http://www.usa.canon.com/cusa/consumer/products/cameras/digital_cameras/powershot_g12 SX30 IS: 14mp CCD, OIS, 24-840mm lens (equiv, 35x!!!!) http://www.usa.canon.com/cusa/consumer/products/cameras/digital_cameras/powershot_sx30_is#Specifications
