I've been a BIAB user for some time. Between it and it's sister sequencer program, PowerTracks, you can do anything easily and well. Support is fantistic... 800# and a live person! I've been checking out the new version online... Digitech harmonizer, pitch correction, and more. I'll be getting the upgrade for sure. Go to PG Music's home page:
http://www.pgmusic.com/

and check out the new features video. It's very comprehensive.