Tony,
They're all pretty good, including the free ones. Audacity's latest version is extremely versatile, user friendly, and best of all, it's free.
http://audacity.sourceforge.net/ Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)