OndeSoft offers downloads of its iTunes Converter for Mac for $39.95. Coupon code "DEALMAC" cuts it to $19.97. That's $20 off and tied with our mention from two weeks ago as the lowest price we've seen for this converter. It can extract audio from iTunes video files, convert M4P and Audible AA files to MP3 and AAC (with appropriate ID and metadata info), and more.