Hey all, 

 I need a bit of help from the animation experts here.  I am doing another Cg Talk contest and this time part of it is a animation of the scene you create.  
  I did my render of the scene using Ambient occlusion  but when I do the animation there seems to be way more "noise" than when I do an animation with the regular raytracer.  I did render the animation at 480 high and downsizing helps but to render it much bigger will take too much time I think.  I have the GI's  interpolate value  on at 20% which could cause the problem but again turning it off  will drive up render times.  Also will cranking up the photon count help , I am only at 1,000.  
  Any insights on what causes this would be appreciated. 
Thanks
Mike