http://www.giveawayoftheday.com/Give away of the day is giving away CyberPower Audio Editing Lab for free for the next 15 hours or so. I have no idea how good this software is but you can't complain about the price!
Description from the web site:
CyberPower Audio Editing Lab 12 is an ideal solution for audio editing and mastering. The program contains everything you need to create great sounding recordings and audio CDs, including professional tools for recording, analysis and editing. The user interface was designed with speed, accuracy and ease of use in mind.
Large range of high quality audio tools and effects are integrated in Audio Editing Lab — including tools for dynamic processing, equalizing, numerous effects such as echo, amplification, noise reduction, reverb, chorus and flanger, as well time stretching and key transposition tools. Recordings distorted by noise, clicks, crackle, clipping or missing high frequency content can be restored.