Sonar and Melodyne.

Sonar is now free as others have pointed out.... Melodyne isn't. But in the world of pitch correction.... there's Melodyne, then there's everything else IMHO. Melodyne is worth the cost if you're looking for transparent pitch correction.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.