I need to change things up a bit here and talk about a vocal effects processor. I have my eyes on the TC Helicon VoiceLive Play Vocal Harmony Effects Processor. My understanding is that I can harmonize with this and it will also correct my pitch so that I am singing in key - so long as I'm not so far off that they can't fix it. It also has voice doubling and a bunch of other effects. It has additional effects so that I can sound like other artist. That is not really my goal. I only want to be able to sing in tune. Does anyone have any experience with this unit or can you make any other recommendations?