"I have been playing around with one image. Now that I am at this point I could use some advise as to masking a background with lots of noise."
Hi Peggysue,
Not sure what you are doing with the image yet, but I am very curious to see how it will turn out.
As to ways of getting rid of background noise in PS, I know of no really good ways. I know that there are software solutions, such as noise ninja that will do this. If others know good masking solutions in PS, I will be glad to hear them as well.

James