I apologize if you've posted this information elsewhere already, but what mic and mic preamp are you using? How is your preamp or mixer connected to the computer? What sound card are you using? How far away from the mic are you talking? What sort of acoustical treatment do you have in your room?

Something doesn't sound exactly right about your raw file, and I can't put my finger on it. If you're using Audition to correct a deficiency, you're also amplifying the deficiency.