Nonetheless, those latest pictures using high ISOs in the range 400 to 800 look also very smooth and virtually grainless. A good upgrade proposal from my 300D I think, and seeing these results I shall be inclined towards the 30D rather than going the whole hog for the 5D.
IMHO, the image quality between my ex-20D and 30D is the same. However, my main reasons for the upgrade were: the 30D's larger LCD, Picture Styles and the spot meter.