PBase

I accidently set my camera to iso800 and the shots were really grainy. I used "Neat Image" software and it fixed them up wonderfully.
I won't be replying. Google this and have a look.

I can confirm it is great software. I gather a lot of others like Noise Ninja as well.

And Noiseware, which is great for finetuning in either direction and is
very easy to use.