Have'nt seen anything mentioned in here about "EXP Studio audio editor", basicly a audacity clone with a few exceptions. Bad side = only 1 stereo track at a time with the free version - not as many bells & whistles either. Good side = some different Fx, filters and such, not "quite the learning curve" as audacity. I use both for experimenting and just thought maybe someone would like a look at it.
http://www.expstudio.com/downloads.htm
Edit - Mods if you feel this would be of better benefit elsewhere, please move it...Thanks