Hi Lucy, yep first names are fine. I'll answer to just about anything.

Noise Ninja is what I use.
Neat Image is also pretty well respected as is NIK Define.

These and a few more are reviewed here: http://www.photographyreview.com/cat/dig...LS_5647crx.aspx

As for RAW processing, I prefer Lightroom, but there are a bunch out there. It's almost like asking whether Canon or Nikon is better.

All of these have trial periods available for you to see which ones you like the best. It all really boils down to what you are most comfortable working with and the only way to figure that out is to try them. Just make a back up of all your images on a separate disk before you start playing with new software.