Before I got the 20D, I had the Pro1. With the Pro1 you pretty much always had to shoot at ISO 50 to avoid noise. Although ISO 100 was not too bad with it.
It has taken me awhile to gain confidence to shoot at a higher ISO, now that I have the 20D.
This was taken in Av Mode ISO 400 1/250 sec.

You could of just smoothened with Neat Image or Noise Ninja. 


