Music-software-reviews.com now has a sound editing software comparison chart available that includes Audition 2.0. You can see at a glance differences between 1.5 and 2.0. The chart seems to line up better through Internet Explorer than through Firefox (my default browser).

That site also has a nice music glossary that describes some of the features listed in the editing software comparison chart.

Most voice actors I know love 1.5, hate 2.0. They find 2.0 unnecessarily complicated. I truly love Audition 1.5; my only beef (and it’s a big one) is that Adobe refuses to develop a version of Audition for Mac OS X. What a terrible tragedy.