they probably want you to buy "Adobe Audition", which they just aquired from Syntrillium. It used to be called Cool Edit Pro, which was and still is one of the greatest sound editing/multitrack recording apps ever (pc only, no mac version).
I sincerely hope they plan to port Adobe Audition to OS X, as there is nothing that compares to this simple yet powerful app.
"Tracktion" is the closest thing available on OS X, still in beta but very promising. Only $80 dollars too.