I have Audition, but I haven't used it recently enough to remember if it works any good.
One of the best ways to reduce noise IMO is to take measures pre-production. By using an external microphone with a wind screen.
But the real experts, or at least the best experts I know of personally in this area, is Kurt of HPI and Katie Kinter of FVGH.
Also check out the following website:
http://www.hauntedvoices.com