Digital BW, The Print

Coming back from several days away - my own experience, after using both 
Neat Image (NI) and Noise Ninja (NN), and a few other noise removal tool, 
is that Noise Ninja is the easiest to use, while producing results at least 
as good as Neat Image.

Remember that none of the really good noise removal tools are at their best 
when used at default settings. Whatever one you choose, read all the help 
files, maybe read them twice. Then get out your troublesome (but not 
hopeless) images which were shot at ISO 400 or higher, and run them through 
either NI or NN.

If you really want a treat, learn how to "paint in" noise removal, using 
blended layers.

BIll Hansen